Here's what I did to get my iPad 3 running (until Apple comes up with a fix)
My iPad was cycle crashing after trying to use iTunes to download an app. This is a little tricky but you can do it to get your home screen back.
Let the crash reload and watch the status bar (the white line that tells you it's reloading)
Push the Home button again and again as the status bar gets closer to recycling - and your home screen will flash on
Quickly 4 finger swipe your screen up and start deleting your open apps.
Once all of them have been closed your home screen will stay on.
Essentially, this means that one of the apps is crashing the iPad, but it's hard to tell which one. Mine started after getting into iTunes.
Hope this works until a fix comes along. In the meantime keep an eye on what apps are open.