Today, AT&T announced the upcoming availability of two new Sony Ericsson phones: C905a Cyber-shot and W518a Walkman. Of course, the C905a is actually not that new – we first saw it back in November 2008 – but it’s the first 8MP camera phone to hit AT&T, so its launch should be welcomed with enthusiasm. The two handsets will be available starting July 19. On contract, the price of C905a is of $179.99, while the price of W518a is of $49.99 (both after $50 rebates). Coming as the US version of C905, Sony Ericsson C905a features an 8MP camera with autofocus, Xenon flash, image stabilization, face & smile detection, and video recording The C905a Cyber-shot also comes with 3G, Wi-Fi, A-GPS, geotagging, Bluetooth with A2DP, TV out and so on. The second new phone from AT&T, Sony Ericsson W518a, is an upgraded version of the W508. SE-w518a-ATT The phone looks like the W508, but it has GPS, alongside a Facebook application, a QVGA internal display, external music controls and a 3...