The T-Mobile G2 came as the successor to the G1, the worlds very first Android phone. The G Series has come a long way since then, but has retained one major element: a stock Android experience that forgoes any manufacturer customizations to the user interface. It would be easy to think HTC, the manufacturer of the G2, might place their Sense UI on the G2 -- it was present on the international version of the phone, known as the Desire Z -- but here it is entirely absent.
The T-Mobile G2 sports an 800 MHz CPU, 3.7-inch display, and slide-out QWERTY keyboard, but don't get fooled into thinking this is simply a mid-range handset. The Qualcomm MSM 7230 chipset can hang with most others clocked at 1GHz, and the bloat-free version of Android means no excess to slow the G2 down.