The operation system on Tmobile G2 is the latest version of Android OS, Android 2.2 (Froyo). Some difference from others phone is Tmobile G2 coming with pre-installed applications from T-mobile and Google such as Sky Map,Shopper,Tracks and Finance. However, all pre-installed app which come with Tmobile G2 can't uninstalled that means you will have many apps that you don't want on your phone. Another mention is bloatware like Photobucket app which asking you to sign-in or use the service with no provocation.Other than these pre-installed problem are great and fast ,with Android 2.2 you will have clean Android experience.
Tmobile G2 is made of silver brushed aluminum and gray Teflon-coated plastic which make Tmobile G2 looks tough and give you a luxurious touch. On the front of Tmobile G2 the 3.7 inches WVGA capacitive touchscreen with 480 x 800 resolution is surrounded by a silver aluminum and in below is optical trackpad which offer better tracking than trackball on Nexus One.On the left side of you can find a microUSB slot and volume button ,and the right side is a two-stage shutter button for camera and button for release slide-out keyboard.At back there's a 5 Megapixel with single LED flash,autofoucus and support for 720p video recording.
Tmobile G2 has 512 MB of RAM with 4 GB internal memory and 8GB microSD card in the box which can expand upto 32 GB. Dimensions of Tmobile G2 : 119mm x 60.4mm x 14.7mm and weight : 184.3 grams - With Android 2.2,high performance CPU and QWERTY keyboard if you looking for high-end Android phone in US market - Tmobile G2 available now.