With the announcement of Windows Mobile 7 having Xbox Live integration, one can expect Apple app store like experience/performance on Windows Mobile 7. I'm also hoping everything we learned from the Zune HD api will translate over nicely to the windows mobile 7 gaming experience almost seemlesly. I heard rumors though that Windows Mobile 7 will not use CF but the full on desktop CLR, however this is just speculation. It really does not matter what version of .net it uses as all XNA games that I made run on the CF and full CLR framework.
Now I just need to port over my games to Zune in preparation for Windows Mobile 7 :) I will not miss the opportunity that Microsoft has laid out with all the resources I have gathered.
Cheers!