IOS 7.0 - Software Update Unavailable - Solution?

Question

After downloading the update, "preparing the update" and "verifying update" for a while, a box appears "Software Upate Unavaiable. Sottware Update is not available at this time. Try again later."
Yes I could wait, I'm just too eager to get this. Any other possible solution or at least a known cause to the problem.

Answer 1

Known Cause: Excess number of users attempting to update at same time.  Too many server requests to handle. 
Solution: Client side - keep trying or wait for a while for server traffic to die down
               Server Side - Upgrade servers to handle more requests (not likely)
It happens EVERY OS upgrade.  Just be patient.  You'll eventually get it.