Round Rick, Texas - Dell today announced that its Streak "tablet phone" will be offered by AT&T beginning Thursday.

The Android-based smartphone tablet will be available for $299 with a new two-year contract and $549 without.

Customers who signed up for the pre-sale will receive a free second-day shipping upgrade, and those who redeem their pre-sale coupon can purchase a Plantronics Bluetooth earpiece for 99 cents while supplies last.

The order period for U.S. priority pre-sale registrants begins today at www.dell.com/mobile. General availability begins tomorrow, also at www.dell.com/mobile.

The device, said Dell communications group president Ron Garriques in a statement, "has found a way to fit your whole world in a 5-inch screen. Its unique size will help people discover new ways to enjoy the web, connect with friends and navigate their lives."