t-mobile.com has three prepaid Android phones on sale for $100. They are (left to right, above) the refurbished LG Optimus T, the Huawei Comet and the Samsung Dart. Although it's refurbished the Optimus T is by far the best phone of the lot thanks to a decent 320 x 480 screen vs. 320 x 240 on the others. Android's fonts and icons tend to look pretty bad on anything less than 320 x 480.
Via: Howard Forums