TriJetHero
macrumors 601
The following is from TinyUmbrella's FAQ;
And from iH8sn0w,
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The New iPad is an A5 device...
TinyUmbrella now has support for saving 5.1 SHSH for Apple TV 3 and the iPad 3 (all versions). As of now we still cannot restore them but we are working on getting that working from a bunch of angles. I'll let you know more when I do.
If you are not jailbroken and want to save your SHSH, your only real choice is to use TinyUmbrella.
iPad3 can be downgraded, the above post is an old posting from ih8sn0w.
Below the post from the Dev-team:
http://blog.iphone-dev.org/post/22834622159/5x-redux
"Starting with redsn0w version 0.9.11b1, those with newer devices (iPad2, iPad3, and iPhone4S) can join the downgrade fun too! In a radical departure from previous versions of redsn0w, it now directly supports restoring IPSWs to your device. The first use of this new feature implements a hack that allows A5 downgrades without a bootrom-level exploit."
Cydia now saves your 5.1.1 SHSH as well as TU.