this what I got back from HTC today:
We understand that it is important you receive all the information to best utilize your smart phone. HTC is currently working on a ROM update, which enables the EV-DO Rev. A and GPS capabilities that are already built into the Mogul hardware. Sprint and HTC plan to make this software ROM available in first quarter of 2008. This update does not include the WM 6.1.
Derrick, I hope we have answered your question in detail. Feel free to contact us again if you have any further questions.
HTC Technical Support
http://www.america.htc.com