I have been having this issue for a while. I was actually hoping that this morning's OTA update would fix the issue, however it did not. I do not know if it is just me or if this is a known issue. Sometimes (about 25% of the time) when I turn on my phone one of the apps on my home screen will automatically start. It is usually my calender app or Documents to Go, but it is always an app on my home screen. Anyone else have this issue or know of a fix for it? Thanks