Yes, unfortunately I updated on Tuesday, and for the past 3 nights (ever since the update) the phone has, at 2am every night, started rebooting and getting stuck in a vicious cycle of rebooting. I just love waking up to "D R O I D" every night at 2am.
I've called Verizon and HTC and neither of them knew about the issue, and just told me to do a Master Reset - which I don't want to do. I'm hoping someone will come up with a solution soon, before I have to reset. I'm not alone - several other people over on the Verizon forum are reporting the same thing.
I even put it in Safe Mode and it still rebooted. Also I stopped Backup Assistant from running but that didn't change anything either.