At the 4th Annual AT&T Developer Summit, coinciding with CES, in Las Vegas, AT&T announced its first three Google Android-based handsets and two Palm webOS handsets. In addition, the company also announced that it intends bringing "apps to all" via a standardized app development platform for its low-end quick messaging devices.

The three Android-based phones that are headed for AT&T include the Mini 3 - the first smartphone from Dell; a clamshell smartphone from Motorola; and an HTC phone. While the "super-small and Super-thin" Mini 3 is already available in China and Brazil; the Motorola handset is apparently hitting the markets soon, as AT&T will likely be handing units out to developers.

Meanwhile, details about the supposed HTC Android phone on AT&T were not disclosed; and about the "two new smartphones from Palm," AT&T Mobility chief executive Ralph de la Vega said that the devices will have "better 3G experience" instead of being brand-new devices - thereby hinting that they may actually be upgraded versions of the Palm's existing Pre and Pixi smartphones.

About the announced lineup of smartphones coming to the AT&T network, de la Vega said that AT&T is on its way to become "the only U. S. carrier to offer this robust lineup of major smartphone operating systems."

De la Vega further added that the carrier will also offer "all major app stores" - including the existing Apple's App Store, along with Nokia's Ovi Store; Android Market; Palm's app Catalog; and Windows Marketplace.