The iOS developer, @Notcom recently released an updated version of his TinyUmbrella to version 5.10.08. TinyUmbrella 5.10.08 can save iOS 5.1 SHSH blobs for the new iPad (iPad 3) and Apple TV 3G. You can download TinyUmbrella 5.10.08from the link below.

For those of you who don’t already know, TinyUmbrella lets you save SHSH blobs for the Apple TV, iPad, iPhone, and iPod Touch, which are required to be able to downgrade the device firmware to an older version. Alternatively, you can use tools like SHSH Blob Extractor or iSHSHit.

This is what Notcom has posted on his blog about this More >