so I have happily been running a jail broke ipad1 on 4.3.1 since the day i first found this wonderful site but low and behold Netflix of all things turned out to be my kryptonite. my daughter uses that app more than anything so now it seems i have no choice but to install 5.1 or 5.1.1 since those are the only newer shsh blobs i have along with a couple of 4.3...'s. So the question i pose is this: is the performance running 5.1.1 on ipad1 really that horrible? From what i have read here it is pretty much a nightmare for the older hardware and i dont want to ruin a perfectly good working device for one app.
Here is a screen shot of the shsh blobs i have. i guess if im unhappy with the downgrade I could restore to the 4.3.3 right.
As I have an iPad3, I couldn't tell you how well an iPad1 runs on iOS 5.1.1 (though my sister's is still going strong ... and she likes it). I am writing to tell you that yes, if you find out that iOS 5.1.1 is not the iOS for you, you can go back to iOS 4.3.3. Hope that reassures.
My iPad 1 and 3 are both on iOS 5.1.1 and both work great. I haven't had any issues. They work without any issues and both are jailbroken. They both have a fair amount of tweaks also