Sorry, just another "feature" of the 2.0 software. My guess is poor memory management within the iPhone OS X. Think about it...everyone says, including myself, that apps work fine after a reboot. Then after awhile they grind to a halt. Apparently not everything is getting closed out of the memory and some programs are still running in the background, at least partially. Apple hasn't even got this figured out yet for Safari...which is why it crashes sometimes. Either they need to stick 1gb of ram in the iPhone or they need to do something with their code. I heard a report, I think on TUAW, about how most of the developers are getting error reports back on their apps...and most of the faults are on Apple's side. Most of them can't even do anything to fix it. But you have to wonder, it seems like some apps are rock solid. Some apps that come to mind are the NEW Units converter, the Crash Bandicoot racing game, Sketches (I drew a detailed drawing on there for about an hour along with several other smaller drawings), Labyrinth, Shazam, Phone Saber...I don't think any of those have crashed. I just think these are birth pangs that we will laugh about in the years to come. Things will be fixed eventually, it just sucks that we have to deal with it until then.