I have had a similar problem, but it is by no means a daily occurence. I've gone quite a while without a reboot and then today it happened twice. Once this afternoon while trying to pull down the notification window with an Astrid update and a few hours later while switching between home screens.
It worries me, but since it happens so sparingly I am inclined to wait for 2.0.1 to see what happens. My wife's updated phone makes mine seem sluggish, so I'm anxious to get it. I may just do the manual update if I don't receive it OTA tonight.