If you were planning on buying one of those three models, and you have a working phone that is just taking up space, this sure is a sweet deal that would put the icing on your holiday shopping.
UPDATE: According to a Radio Shack employee, the actual deal requires you to bring into the store a working cell phone with no physical or water damage. The trade-in must be able to power on. In return, the customer will receive $100 off the price of an HTC EVO 4G on Sprint's network.
The $79.99 price for the T-Mobile G2 and the myTouch 4G requires only a 2 year contract, no trade in is necessary. Finally, the free Bluetooth is being given away to anyone who signs a 2 year contract through Radio Shack.
If the T-Mobile network is more your style, Radio Shack will allow you to trade in your old-but still working-handset, sign a 2 year pact, and pay $79.99 for the HTC manufactured G2 or the myTouch 4G.