Just yesterday we saw a leaked T-Mobile document showing the T-Mobile G2X available on 4/15. Well that was only half right. You can pickup the G2X online starting 4/15 for $199.99 (after MIR) with a two year contract. The dual-core phone will be in T-Mobile stores starting April 20th. If you want to buy just the phone without signing a new contract, that will run you $499.99.
[T-Mobile Blog via Twitter]