Anyone after a bargain on Android should go to their local T-Mobile retail store before the deal ends or stock becomes end of line. For just £15 a month you can bag yourself a free Samsung Galaxy Portal or LG In Touch Max (GW620) running Android, 300 Minutes, 300 Texts, Unlimited Internet and a Flexible Booster!.
So that could mean a very impressive 300 Minutes, Unlimited Texts and Unlimited Internet (3GB Fair Use) for just £15 and no price up front for the phone!.
This deal is not online any more (the phones are no where to be seen now) but some retail stores will have stock still so if you want a great deal get in there quick!