It has also been reported that Motorola has pretty much abandoned Windows Mobile in favor of Android, but that may not be true if the LinkedIn profile of a senior engineer at Motorola is to be believed. His current status is:
Joining Caesar product development, lead a team to do telephony feature and other applications development. Migrated relative applications from Windows Mobile 6 to Windows Mobile 7 Language: C++ Tools: VS2008, AKU, Platform Builder Runtime Environment: Windows Mobile 7.0 (Beta)
That also means that Windows Mobile 7 is in beta and phone manufacturers have a copy of it. Due to a bit of due diligence from UXEvangelist at the LinkedIn site, a number of WinMo 7 features have been uncovered. One of the profiles also mentions getting WinMo 7 working on a Motorola device. It also seems that IE7 or perhaps IE8 will be coming to the Microsoft platform. WinMo 6.5 has a browser largely based on IE6.