Google Giving Up On 'Revolutionary' Android Sales Model?

Accessories for the HTC-made Nexus One have begun appearing in T-Mobile retail stores. Is T-Mobile preparing to stock the Nexus One? If so, does that mean Google is giving up on its plans to sell Android devices directly to consumers? Also, an "Incredible" device is preparing to launch with Verizon Wireless.T-Mobile retail stores have received shipments of protective cases for the Nexus One, among several other accessories for the device. I can think of just a two reasons why T-Mobile might be stocking Nexus One accessories: