And yet another manufacturer has officially entered the Android game as Sony Ericsson has formally announced the XPERIA X10. Powered by a 1GHz Snapdragon processor and running on Android 1.6 “Donut”, the X10 boasts a 4″ WVGA capacitive touchscreen display, an 8.1 megapixel camera, Wi-Fi, GPS and two flavors of UMTS/HSPA — one of which supports T-Mobile, the other, AT&T — in addition to quad-band GSM/GPRS/EDGE. Regrettably there is only 1GB of built in memory, although an 8GB microSD card ships in the box. In terms of UI customization, the X10 comes with the UI overlay UX called Rachael (user experience) which extends into two premier apps: Mediascape — the media player which we’ve already seen twice — and Timescape, which more or less is SE’s answer to a MOTOBLUR type skin. Pricing and countries of availability has yet to be announced, but the XPERIA X10 will be available in Q1 2010 in Sensuous Black and Lustre White (yes, we LOL’d, too). Hit the jump for a promo video and a press release.