So, it's not excactly bike related (unless, of course, you're on the phone while riding like many Dutch folks)...
iPhone 2.0 software has created quite a buzz this morning because the Apple servers can't keep up with the activations. This is a huge problem!
HERE'S THE SOLUTION:
If you're stuck with a network access error:
-Go to your iTunes Store
-Click on a song to get to the song page
-Immediately click on the iPhone under Devices
It will start your sync (apparently Apple is giving priority to $0.99 song purchases over iPhones).
Thanks to those at the coldfusionjedi blog for the discussions!