I flashed with the new OS and had a similar issue trying to get a stowaway KB connected - kept rebooting while I went through the process of picking out the keyboard, which it did with the previous version as well. I kept re-trying, and eventually was able to pair them, though for the first couple-few pairings it did seem like it rebooted each time the bt plugin had to read the KB. Since then, I've got an uptime of almost 4 days going, but it does seem like connecting the KB can kill certain apps - gaim, ToDo list - totally random, seems to be related to connecting the device *after* the app is open...
does seem faster and a little tighter on the screen, so I'm **very happy** people are still working on this, and not abandoning it for the 800...