Cool, thanks for the responses.

This question only occurred to me just now, after a Safari crash with CNN.com about an hour ago. It got me thinking back to the Sidekick II I owned a few years ago and how I was told to turn it off at least once a week--and when I did that, I didn't have many problems with that phone at all. I wondered if turning off the iPhone would prevent it from acting wonky during the day, just as it did with my Sidekick II, so I'm glad I asked.
