Please bear with me and feel free to "dumb it down" a bit. I have an Iphone 3G, and this weekend, when I connected to Itunes, it upgraded to the 4.0 software and *SAID* it was backing up all of my information (contacts, calendars, etc). The software upgraded and it all works fine but *ALL* of my information is GONE! nothing is on the SIM card, because I tried putting it into another phone. I back up my entire computer to my Time Machine regularly. I spent 1 hour on the phone with a "Genius" while I wasn't at home who repeatedly nagged me to back up my phone. Tonight I spent 45 mins, most of the time, the "genius" didn't know where my contact data even saves. In the end, tried copying last back up before the upgrade to 4.0 software and restore my Iphone to that backup, but it was a no-go. I am lost with out my calendar and contacts.