Trade in your old iPhone for a shiny new T-Mobile HTC HD2

Honestly, now that I have an iPad I would have seriously considered trading in my iPhone 3GS for the HD2 if I had to pay the $450 no contract price. The HD2 has much nicer hardware than the iPhone 3GS with better specs and is just lacking in applications. The offer runs from 1 April to 19 May and is available at participating dealers, through 1-800-TMOBILE, or business direct sales representatives. It is not good at corporate (aka official) T-Mobile stores. You can purchase the HD2 at full price without activation using this offer too and a data plan is not required so if you want to use your HD2 primarily through WiFi and not attach it to a data plan this may be the route to go.
I wonder what T-Mobile is going to do with iPhones that get traded in as part of this offer? Will they send them to HTC so they can destroy them in anger over the Apple lawsuit?