On .141 I had issues with the radio...I would lose data connection frequently. It would say 1XEV with 3 or 4 bars, but when I opened browser all I would get was "Requesting...". Then if I disconnect/reconnect the connection, or pull the battery, it would start working again, until the next time I let it sit idle. Then there's the lock bug and the QuickLaunch compatability issue.
So I went back to .132. Much better radio connection for me, stable, lock button and QL work. I seem to have a memory leak I haven't pinned down yet (right now I'm down to 9.8 MB free after a reboot last night that had me at about 30), but it still is performing well so I haven't pulled the bat yet.