America’s fourth-largest wireless carrier, T-Mobile, is preparing for an onslaught of competition in the Android smartphone market, announcing its second product based on the budding Google operating system.

Unlike T-Mobile’s first Android device, the forthcoming ‘myTouch 3G’ won’t have a built-in QWERTY keyboard. Instead, it will feature a large touch-sensitive screen similar to that of the Apple iPhone.

“We’re responding to feedback from people who say they think Android is great but they aren’t messaging fanatics. They want a phone-first device,” explained T-Mobile’s director of product development, Josh Lonn.

The myTouch 3G comes preloaded with Android 1.5, and will feature stereo Bluetooth, voice controls, and a 3.2-megapixel digital camera with video recorder. It will operate on T-Mobile’s UMTS/HSDPA mobile data network, allowing users to surf the web at broadband speeds, and make use of a wide array of Google web services, including GMail, YouTube, and Google Maps.

T-Mobile customers will be able to pre-order the myTouch 3G beginning July 8, at a price of $199.99, on a two-year wireless contract.