Again, snatch a huge market and promising Dell Inc. on Tuesday released the first U.S. smart phone, enter an increasingly crowded market with 3.5-inch Android device called Aero worth 100 dollars networked AT & T.

Strides have been anticipated by the computer manufacturer Dell in competition with Apple Inc. smart phone market leader, and with other phones that use traction Android operating system Google Inc.

Dell, based in Round Rock, Texas, said that his new smart phone will sell for 99.99 dollars with a two-year networking contract from AT & T, or 299.99 dollars without a contract.

Dell said that Aero will be one of mild Android smart phone in the U.S., and supported by Adobe Systems Inc software, Flash, which makes Dell different with Apple is refusing the use of Flash on mobile devices.

Personal computer maker to enter the smart phone market in late 2009 with the release of three mini phone in China. The company also released a 5-inch tablet this month called Streak who also run with Android and using AT & T network for phone calls. Streak will compete with Apple iPad.

Smart phone market worldwide is expected to grow 36 percent to 247 million units in 2010 from 182 million in 2009 according to IT research, iSuppli