Yes. It's happening to me. It seems to happen about once a day. I can't detect any particular pattern. It happened once during a phone call. The call just went dead, the screen appeared to be frozen for about 5 seconds, then the whole thing powered off and rebooted. The other times it happened I was in the middle of texting or looking at something with the web browser, when the device froze and then suddenly rebooted? Not sure if I should request a replacement Droid X from Motorola or not?

I will say that I don't think it has anything to do with the Weather Channel app because I only just installed that app a couple days ago and my Droid was experiencing the rebooting issue before then.