The GSM version of the Sony Ericsson game phone, Experia Play is heading to AT&T and will named the ATT Xperia Play 4G. The Specification is not different from the Verizon version of the 3G CDMA EVDO, it's just on the data connection that supports GSM and HSPA+ as a AT&T's 4G network.
The SE Xperia PLAY GSM is equipped with a 4 inch display at 480 x 854 of resolution, powered by Android 2.3, 1GHz single-core processor and supported by with 512MB of RAM and ROM, also the Adreno GPU graphics processorfor better gaming performance, a 5MP camera with LED flash and a slider landscape game controller just like PSP controlled.
Via: AndroidCentral