After some tries to complete the upgrade of my iPAD to 4.3.3 last friday using my Mac and two other windows PCs I can conclude the following:
1- Firstly I need to comment the /etc/hosts file line where gs.apple.com IP was statically marked, otherwise when trying an error message saying "Your device isn't elegible for requested build" appears.
This means that gs.apple.com host changed its IP address! And ... Who statically set this in the hosts file?
The Apple Computer! ... Yes this value come from the factory in the OS X.
How I discovered this? Well, I perceived this because I was able to complete the upgrade process in a two other Windows PCs but unable to activate at all.
2- With the problem "Your device isn't elegible for requested build"... solved, iTunes was able to transfer the iOS 4.3.3 to my iPad but was unable to activate it.
This is a SHAME for the Apple and its support service!!!
Here in Brasil the local support without know what to do, put me in a conference call with a US support guy supposedly to be a "level 2" support. The guy told me ... "I never hear this error!"
********! I dont believe that I was the first ****** user that related this BIG problem this fatidic friday at 16:00PM!!!
The problem is with the Apple infrastructure update/activation servers! Not with my iPad. I have no doubt!
Now I have an unusable iPad ... and the forum and google was MUCH more useful than "Apple Support"
Apple Care? Care What? Care Who?