Yesterday I noticed my extended battery was barely able to charge and Launcher Pro was quitting/restarting about every 3 hours. Went into the Market and ACK, it was stuck on "uploading" an update of LP.
I tried quitting the download; no luck. Tried a few other tricks including powering down & restarting; deleting the app; powering down overnight; battery pull.
Nothing I did stopped the crazed downloading.
Verizon had a couple of ideas I'd already tried, so they couldn't help. They recommended a hard reset using the instructions on the VZW web. But I installed 2.2 myself using the RUU and True's instructions that I saw here, and that had worked well. So synced and did the RUU install again. Took about 15 minutes to reinstall and another 30 to configure and install my stuff.
Now I'm back up. I miss my Launcher Pro, but I notice it's not on the Market anymore. And going to the LP Web site, it looks like the developer is rewriting it from scratch...so I think I'll forgo loading it until I hear more.