I just plugged my iPad into my iMac and launched iTunes.
A dialog appeared saying there's a new version of iOS for the iPad. Would I like to download and iNstall it. Yes.
A few seconds later a dialog appears saying there's a new version of iTunes. Same question. Yes.
I think you can see where this is headed. :-)
Some piece of software says that I can't install a new version of iTunes unless I quit iTunes. So I try to quit. Then I get a dialog wanting to confirm that I want to quit iTunes while my iPad is being updated with the new version of iOS. Either way, no or yes, gets me more dialogs. I can't get out of this loop any way other than to force quit all the software that's running that's orchestrating this Kafkaesque madness.
Somewhere Steve Jobs is rolling over in his grave. (Or at least rolling his eyes.)