So far can use itunes and zune with music information such as artist, album and title, although the actual music controls work with most music players. Hope this helps. If not, please tell me what player you are using and I will try to add support for it in the next update.
i really dig the tiles but i'm having trouble aggregating my Facebook Notifications into the Facebook Tile. i copied the link from my RSS feed into the box, pressed Enter, Save, everything i could possibly think of to try to make it work. i was going to edit right into the code but i couldn't quite figure out how to do that for this. xD
You had almost all the right steps. The only thing is that the link should have looked somewhat like "[link]" and you only need the numbers after "id=" until the "&" character not the entire url. Hopefully you can understand this and get it working.