HTC Touch Pro2 which is part of the Sprint network has Windows Mobile 6.1 installed by default. If you are looking to upgrade the ROM to Windows Mobile 6.5, you will be able to do it thanks to a custom ROM released by HTC Pedia.

A video demonstration of Ubuntu running on a HTC Touch Pro2 device. Ubuntu was ported to the HTC Touch Pro2 device by XDA forum members.

Verizon has officially released a Windows Mobile 6.5 update for HTC Touch Pro 2 and HTC Ozone for current users of these cellphones on Verizon Wireless.