You can unplug the USB cable or turn off wifi.
I would try turning your iPad off. Hold the starter button down until the slider appears, and then you can slide it to power it off. You can also go to your System Preferences and turn off your Wifi. That should stop it as well.
Your iPad 2 will be backed up to your computer when you update the operating system, including all the content.
When you update your Ipad through iTunes or the App Store, all your games are saved. You can even recall the way the iPad was before the update if things don't work out right. If you have a jailbroken iPad and have done some 3rd party update, it may have deleted all your games.
Yes!
No. It is only available for New iPad (3rd Generation) and iPad with Retina Display (4th Generation)
Furnaces are not constructible in the Minecraft iPad version, but most likely will be in the next update.
Sync with computer running iTunes. Update.
Yes. It is available in the iOS 6 update
iPad runs on iOS. Go to the update section. Here you can see the current version of your OS.
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
mmm just keep waiting, theres no other option
Yes, it can be traced. You cannot change the serial number of the iPad, and this always comes up when you connect it to sync or update.