[Sodbuster]

It worked very well for me last night. Took about one hour, including all the backups and reinstalls. Actual ROM flashing took the 10 minutes or so it said that it would.

I did lose one program that I really like, and I cannot remember what it is called. It put lots of little useful icons including comm manager on the bottom taskbar. Does anyone know what that is called?

I don't know that Valhalla worked. I followed the instructions exactly. If it did, the GPS receiver in the xv6900 is less sensitive than my Garmin puck, and doesn't work indoors even by a big window.