I see there are a couple of posts about this in the TP2 section- so if any moderators want to delete this thread feel free. But since not everyone owns a TP2 here ya go.
Slacker released a mobile client for WinMo you can download here...
http://www.slacker.com/everywhere/mobile/windows/
Giving credit to AcidBath over at XDA for the discovery
http://forum.xda-developers.com/show...77#post5974519
I know there were some problems with the one posted a while back. The UI on this version is pretty darn good. Although I did not have a bunch of success at streaming music.
Edit: 04/15/2010 New Build of Slacker Radio. Build Number 1.0.148
There is a new UPLOAD LOG feature, which uploads your data/changes to slacker Radio.
Please report any other changes...