Mobile executives at a Silicon Valley roundtable discussion threw down the gauntlet to Symbian, Android and other software platforms to match the impact of the iPhone.

Talking only about two weeks after the introduction of Apple’s iPhone 3G and the App Store, where third-party software for it is offered, heads of some software companies reported huge numbers of downloads and proclaimed a new day on the mobile Internet. The jury is still out on whether the open-source phone platforms coming from Google and the Symbian Foundation will be able to match Apple’s success, according to the panelists at the TechCrunch Mobile Web Wars event in Menlo Park, California, on Friday afternoon.

For example, Pandora Media began offering its Internet radio application for most other mobile platforms, through carriers, about 18 months ago, Pandora CTO Tom Conrad said. That resulted in about 12,000 paid monthly subscriptions to the service, he said.

“In six days, we had 350,000 installs on the iPhone,” Conrad said. A key factor was that the App Store let the company give away its client and support its service through ads. On other devices, Pandora has had to use carriers’ monthly subscription model, he said.

Nearly 1 million Facebook users have downloaded the social-networking company’s application to their iPhones, according to Jed Stremel, director of mobile at Facebook. And Loopt, a location-based social-networking startup, reached 100,000 iPhone downloads only about a week after the App Store opened. The average iPhone user also is 47 times as active on Loopt as those on other types of phones, said Loopt cofounder and CEO Sam Altman.

“You can make such a beautiful app, and it’s so nice to use, so quickly, on the iPhone,” Altman said.

Apple is in talks some of the major music labels over a deal that would allow next-generation iPhone owners to purchase music tracks directly from the handset over cellular wireless networks, according to the New York Times.

Owners of the company’s first-generation iPhone can already accomplish this via a mobile version of the iTunes Store that resides on the handset, but they must be connected to the Internet via a high-speed WiFi connection to do so.

The arrival of faster 3G cellular network access alongside the next iPhone, widely expected for an announcement during the second week of June at Apple’s developers conference, would make it more “technically feasible” for Apple to offer the over-the-air route, the Times notes.

However, the paper reports that the music labels are holding their hand out, demanding that in return they be paid more than the 70 cent wholesale price of songs sold over traditional Internet lines.

Apple’s hoping for “a big launch in June,” according to one label executive familiar with the matter, and as such is also looking to expand its inventory of songs that are available for conversion to ringtones at 99 cents.

“The company is also hoping to add answer tones, also known as ringback tones—songs that a caller hears instead of the ‘ring ring’ sound while waiting for someone to answer,” the report says. “In some cases, these command an even higher wholesale price than ringtones.”

Given that the negotiations are only a few weeks young, it’s reported that any deal may not be announced until after June 9th, the most likely day for the introduction of the much-anticipated 3G iPhone.

iTunes Says Its Customers Top 50 Million.

February 26, 2008—Apple® today announced that iTunes® (www.itunes.com) is now the number two music retailer in the US, behind only Wal-Mart, based on the latest data from the NPD Group*. Apple also announced that there are now over 50 million iTunes Store customers. iTunes has sold over four billion songs, with an incredible 20 million songs sold on Christmas Day 2007 alone, and offers the world’s largest music catalog of over six million songs from all of the major and thousands of independent labels.

“We’d like to thank the over 50 million music lovers who have helped the iTunes Store reach this incredible milestone,” said Eddy Cue, Apple’s vice president of iTunes. “We continue to add great new features like iTunes Movie Rentals to give our customers even more reason to love iTunes.”

Last month, Apple launched iTunes Movie Rentals featuring movies from all of the major movie studios including 20th Century Fox, The Walt Disney Studios, Warner Bros., Paramount, Universal Studios Home Entertainment, Sony Pictures Entertainment, Metro-Goldwyn-Mayer (MGM), Lionsgate and New Line Cinema. Users can rent movies and watch them on their PCs or Macs, all current generation iPods**, iPhone™ and on a widescreen TV with Apple TV®. iTunes Movie Rentals will offer over 1,000 titles by the end of this month, including over 100 titles in stunning high definition video with 5.1 Dolby Digital surround sound which users can rent directly from their widescreen TV using Apple TV.

iTunes 7.6 is available as a free download at www.itunes.com. iTunes Movie Rentals are available in the US only and are $2.99 (US) for library titles and $3.99 (US) for new releases, and high definition versions are priced just one dollar more with library titles at $3.99 (US) and new releases at $4.99 (US). Movie rentals from the iTunes Store for Mac® or Windows require iTunes 7.6. iTunes Movie Rentals require a valid credit card with a billing address in the country of purchase.

*Based on data from market research firm the NPD Group’s MusicWatch survey that captures consumer reported past week unit purchases and counts one CD representing 12 tracks, excluding wireless transactions. The iTunes Music Store became the second-largest music retailer in the US after Wal-Mart, based on the amount of music sold during 2007.

**Movie rentals work on iPod® classic, iPod nano with video and iPod touch.

Apple ignited the personal computer revolution in the 1970s with the Apple II and reinvented the personal computer in the 1980s with the Macintosh. Today, Apple continues to lead the industry in innovation with its award-winning computers, OS X operating system and iLife and professional applications. Apple is also spearheading the digital media revolution with its iPod portable music and video players and iTunes online store, and has entered the mobile phone market with its revolutionary iPhone.