Notcom has released updated TinyUmbrella 5.10.06 for Windows and Mac that includes bug fixes and support for iOS 5.1 beta 2 and beta 3. Official words for TinyUmbrella 5.10.06 :
There was a nasty UI locking issue when you clicked ‘Save SHSH’, which is partially fixed. But now there’s flicker in the saved shshs window.
See also:
How to Save SHSH Blobs with TinyUmbrella
Download TinyUmbrella 5.10.06 for Windows
Download TinyUmbrella 5.10.06 for Mac