TinyUmbrella 4.33.00 released adds support for 4.3.3 and 4.2.8 big changes coming soon!
@notcom the developer of the computer based SHSH saving software has updated TinyUmbrella to 4.33.00 too add support for firmware 4.3.3 and 4.2.8 so this would be a great time for you to back them up 
He has also hinted that there are some major changes that are coming. We're still holding tight for any news regarding his TinyRestore iTunes alternative project
DOWNLOAD:
Tiny Umbrella 4.33.00 - Win
Tiny Umbrella 4.33.00 - OSX
TinyUmbrella now supports 4.3.3 and 4.2.8 (verizon). Sorry for the delay, I've been quite busy. I'm working on some pretty drastic changes for TinyUmbrella.
