Tegra processor is the hot way to do it at the moment, and we've got reasonably concrete sounding rumors from disparate sources that a handset containing one of the chips is currently under development by a "top five" smartphone builder (we're guessing it's not Apple), and that it'll be out sometime before the end of the year, selling at T-Mobile and AT&T for just $199. The details of the device beyond that are scant, with Android being a possibility but Windows Mobile looking more likely, and a continued pledge of battery life of rated for "days and days" of mobile multimedia. We like the sound of that.
Read - NVIDIA Tegra phone due from "big five" firm
Read - Rumor: NVIDIA Tegra phones in Q409?