I have a Sprint EVO and I love it, best phone I've ever had, only negative is awful battery, so I am SOLD on Android. Questions > 1. I have 3 x T-Mobile lines for my daughters. One has a RIM Pearl that is on it's last legs, and 8 months from upgrade. I want to buy some type of Android phone off E-Bay to replace. Any "gotcha's" 2. Do T-Mobile android phones have SIM cards?