iOS 6.0 is expected in October of 2012.
Yes. All iPad minis should be running iOS 6 and can update to iOS 7 this fall.
Yes. It is available in the iOS 6 update
Unfortunately, the first generation iPad is not compatible with iOS 6. Apple stopped supporting the iPad 1 with updates after iOS 5.1.1, which was the version just before the iOS 6 update. Interestingly, the iPad 2 is still supported to this day.
You have to update your iPad 2 to iOS 5 if you bought it prior to the launch of iOS 5. You can update now to iOS 6 (and soon iOS 7), by plugging your iPad 2 into the computer you authorized with your iTunes account and waiting for the pop up that will ask if you want to install the new software update. The process should take 1-2 hours.
Yes!
Plug it into your computer, then open iTunes and click your iPad on the side bar and it will ask you somewhere on the page to check for updates, click it, and if there is an update, which there should be an ios 5.0, click update now
You cannot. The iOS 5 update is only for Iphone 4, iPod touch 4, iPad 1, iPad 2
You cannot. If you buy a new iPod or iPad or iPhone, it comes in iOS 4.3.3 and you have a choice to update to IOS 5 or not.
No
No
IOS 4.2.1 Available for update March 11 2011: IOS 4.3
Connect to computer and sync in iTunes. You will be asked if you want to update to iOS 6. Note that you will lose your YouTube app if you do. There is currently no replacement from Google for this app (its in the works).