After release of iOS 5.1 and the new iPad 3 TinyUmbrella was also updated to version 5.10.08 and released both for Windows and Mac users. The TinyUmbrella will help us to save iOS 5.1 SHSH blobs for iPad 3 and the Apple TV 3G including all other devices i.e. iPhone 3gs, iphone 4, iphone 4S, ipad and ipod touch. So if you are planning to try iOS 5.1 and want to keep the option of restoring back to existing/previous version after upgrade you must save your SHSH blobs using TinyUmbrella, the SHSH blobs are used when iTunes sends the restore request to Apple. Similarly if you are having iTunes Error 3194 you can use this new version of tinyumbrella to create custom firmware for your device and use that to restore in iTunes, you will not face the Error 3194.
You can visit my article on How to Save SHSH blobs.
Below are the download links:
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