to commonly asked questions.

iCal reporting syncing error after upgrade

My iPhone is not picking up the signal and joining my AT&T mircocell.

1st try powering your phone off then back on again.  You can do this by holding down both the top and lower "home button".  Then after the phone has turned completely off, hit the top button once again.  Let's see if that helps at all.  
This image is a theme.plist hack