On my hero, nearly every time I try to create or edit a calendar event, I get a force close popup for the calendar app. It is getting very aggravating and no matter how many times I do a battery pull, it still happens. I'm not sure if it has anything to do with it, but I use a program called spanning sync to sync my mac iCal program with my gmail which in-turn syncs to my hero. Any feedback would be appreciated.