It seems to be Android week on AT&T, which released two of the most awaited Android phones Sony Ericsson Xperia X10 and Dell Streak.

Dell Streak is finally available for $299.99 with new two-year AT&T contract+, and $549.99 without from August 12. While the U.S. priority pre-sale registrants will be first to get their hands on the device, rest will get it a day later. Streak will be available at Dell.com/mobile.

Reminding you once again of the Dell Streak specifications:

• 5-inch capacitive multi-touch WVGA display
• Android platform complete with Android Market and Dell user interface enhancements
• Qualcomm’s Snapdragon solution with integrated 1GHz processor
• 3G + Wi-Fi + Bluetooth
• 5 MP Autofocus camera with dual LED flash
• Micro SD storage
• 2GB of internal storage