My iPad 1 is only slightly over a year old, and on Apple Care. In October, I updated to 5.0, so I could have that split keyboard for thumb typing. but, iOS 5 slowed my device down to a crawl, hurt screen responsiveness, created so much lag I could type and wait several seconds before the words appeared on screen, and went from easily 4-7 days on a single battery charge, down to 2 max. I discovered that there was no way to go back to 4.3.5, and I was not considering jailbreak options, so I end up reducing my iPad usage. When 5.1.1 came out, it made a big difference in performance and some improvement in battery life, but I still had to carefully manage my open apps carefully to keep it running passably. A week ago, I had to get my iPad replaced under Apple Care, for a bad digitizer and poor battery performance, so I now have a new iPad 1 running 4.3.5 and it seems to be running much faster and leaner. But, the truth is, it could still be better, and, of course there, are things I have to live without, including any new app that requires iOS 5.1.1. . So the question is... Do I stay stock at 4.3.5, enjoy the better performance, and longer battery life, and just live with the limitations, or do I upgrade to IOS 5.1.1 and jailbreak to Absinthe? I need to know that there are things i can do under absinthe to really optimize performance (I.e., over clock, increase/improve screen sensitivity/response, increase battery life back to v4) without hurting stability. I jail broke briefly, over a year ago, but it made the device unstable and it rebooted at least once per day (a common occurrence, I have heard), so I put it back. Any insight? Can I trick this thing out to be better, faster, with more battery life, without creating a spontaneously rebooting mess? Thanks!