Apple wants owners of its latest generation iPhone to get a proper grip on the handset.

As analysts on Friday fired off predictions that opening day iPhone 4 sales would easily top a million, Apple dismissed complaints that cupping the smartphones in a way that covered the lower left corner cut signal strength.

"All phones have sensitive areas," Apple chief executive Steve Jobs was quoted as telling technology-focused Ars Technica website in an email. "Just avoid holding it in this way."

Aspiring iPhone 4 owners swarmed Apple stores in Europe, Japan, and the United States on Thursday in a launch that rivaled the release of the first iPhone by the culture-changing California firm.

Some new iPhone 4 owners discovered that holding their new smartphones so that their palms covered the lower left corners choked off the strength of the telecom service signals.

Apple designed silver edging on handsets to be part of the antenna system to improve signal strength.

The problem could be fixed by moving one's hand or encasing iPhones in rubber "bumper" frames that Apple sells for 30 dollars.

"Gripping any mobile phone will result in some attenuation of its antenna performance, with certain places being worse than others depending on the placement of the antennas," Apple said in a statement on Friday.

"This is a fact of life for every wireless phone."

Apple advised users who experience the signal problem to "avoid gripping it in the lower left corner in a way that covers both sides of the black strip in the metal band, or simply use one of many available cases."

In a blog post, Altimeter Group analyst Michael Gartenberg called iPhone 4 "the gold standard" against which other smartphones will be measured.

Gartenberg mocked antenna complaints in a Twitter message saying, "I covered my phone's screen with the palm of my hand and now I can't read text anymore. Design flaw?"

Antenna concerns did not appear to deter the hordes that descended on Apple stores on Thursday. Oppenheimer analysts Yair Reiner and Michael Suh raised their estimate of iPhone 4 sales to 1.5 million.

"Guessing first-day iPhone sales is somewhat meaningless but hard to avoid," the analysts said in a note assessing the iPhone 4 marketplace debut.

A sample survey of iPhone 4 buyers indicated that only 26 percent of them were buying the smartphones because an old phone was failing and that 76 percent owned a previous generation of the gadget, according to Oppenheimer.

"I've been an Apple head since I was a teenager," said Richard Polote, among those queuing to buy an iPhone 4 in San Francisco.

"I feel pretty confident that whatever problems do arise, Apple will solve them in a timely fashion with upgrades or whatever," Polote said.

Features luring people to the iPhone 4 include high-definition screens and "FaceTime," which uses a forward facing camera to enable video chat.

"I think these issues will sort themselves out," said Gartner technology analyst Van Baker. "It is a very impressive phone."

The original iPhone launched in 2007 brought smartphones to the masses. Apple has sold more than 50 million of the handsets in the past three years.

But its latest version enters a crowded market full of rivals boasting bigger screens and running on Google's open-source Android operating system, which is more accessible to developers than Apple's tightly guarded system.

Sales of a white iPhone 4 model have been delayed to the second half of July because of unspecified manufacturing difficulties.

Carriers in the United States and France were forced to suspend early orders because of heavy demand. Apple said last week that it set a single-day record of 600,000 orders for the new smartphone.

The new iPhone will be available in 18 other countries in July and 24 more in August.

earlier related report
Apple's iPhone 4 makes stellar world debut
San Francisco, Usa (AFP) June 24, 2010 - Apple fans mobbed stores in Japan, Europe and the United States in an iPhone 4 frenzy that promised blockbuster sales despite some opening day blemishes.

Hundreds of people queued up through the morning on Thursday outside the Apple store in downtown San Francisco, where one person reportedly sold a place in line for 400 dollars and another swapped a spot for an iPhone 4.

Some online complaints about iPhone 4 signal strength being hampered by a troublesome antenna design did not deter those in the queue.

"It's all rumors until we get them," Robert Freedman of San Francisco said as he waited to get his hands on an iPhone 4 to replace a model he had "beat the heck out of."

"People are walking out with them and saying they are using it and everything is fine," Freedman said.

Features luring people to the iPhone 4 include high-definition screens and "Face Time," which uses a forward facing camera to enable video chat.

"I've been an Apple head since I was a teenager," said Richard Polote, a 26-year-old San Francisco man who had been waiting outside the store since 2:30 in the morning.

"I feel pretty confident that whatever problems do arise, Apple will solve them in a timely fashion with upgrades or whatever."

Some new iPhone 4 owners were chagrined to discover that cupping their new smartphones so that their palms covered the lower left corners choked off the strength of the telecom service signals, according to videos posted online.

Apple designed silver edging on handsets to be part of the antenna system to improve signal strength.

The problem could be fixed by moving one's hand or encasing iPhones in rubber "bumper" frames that Apple sells for 30 dollars. Apple did not respond to an AFP inquiry for comment.

"I think these issues will sort themselves out," said Gartner technology analyst Van Baker. "It is a very impressive phone."

Based on the intense launch-day demand for the iPhone 4 the analyst thinks Apple will sell them as quickly as they can make them.

"Apple told me today they are building them as fast as they can," Baker said. "Expect a serious constraint on supply, which in turn will add to the hype of people desperately wanting to get one."

Whatever launch day sales figure Apple reports "is going to be huge," the analyst predicted.

In Paris, Senegalese businessman Bassirou Gueye joined some 350 people queuing before the opening of Apple's flagship store in the city, located in the chic underground shopping mall of the Louvre museum.

"I made a special trip to Paris to buy the iPhone 4. I'm interested in its high-tech features," said Gueye, a self-avowed Apple aficionado who already owns half a dozen brand-name devices.

Some buyers in France, however, reported problems activating their new phones because of technical problems with operator France Telecom.

In Germany, there were long queues at Apple stores and phone company Deutsche Telekom complained it did not have enough handsets to meet demand.

"By lunchtime iPhones in the high tens of thousands have already been sold. In Munich we have sold out," said Deutsche Telekom spokesman Dirk Wende.

Some 500 customers waited in line outside Apple's flagship Regent Street store in London when it opened its doors -- far more than those who queued for the launch of the iPad tablet last month.

Japan's eastern time zone put it first in line to sell the phone and hundreds braved sweltering humidity outside Apple's store in the Ginza district to get hold of the smartphone.

"I am truly amazed there were huge lines in Tokyo," Baker said. "It matches the original iPhone roll-out and that just blows me away."

The original iPhone launched in 2007 brought smartphones to the masses. Apple has sold more than 50 million of the handsets in the past three years.

But its latest version enters a crowded market full of rivals boasting bigger screens and running on Google's open-source Android operating system, which is more accessible to developers than Apple's tightly guarded system.

Sales of a white iPhone 4 model have been delayed to the second half of July because of unspecified manufacturing difficulties.

Carriers in the United States and France were forced to suspend early orders because of heavy demand. Apple said last week that it set a single-day record of 600,000 orders for the new smartphone.

The new iPhone will be available in 18 other countries in July and 24 more in August.