I have been trying since I got my Ipad2 or Christmas to get ios 5 installed on it. Everytime I tried it would never get past step 1/6-- "backing up". This last time it again halted at this step and actually caused my ipad to "turn off" (black screen with Apple logo and a loading icon with occasional beeping). Apparently I can't use icloud without this upgrade and really I can't sync my ipad with my computer because it keeps trying to upgrade it whenenever I plug it in. My iPhone4S which I now know already has ios 5 seems to work OK with my iTunes. Any suggestions?