I haven't tried it, but I'm damned tempted. I had gestures enabled under iOS 4 using the Xcode trick and they were awesome. One of the first things I did after upgrading to iOS5 was swipe up to get at ...
Regardless, I expect it'll be sorted out within the next 5-10 years, whether through an updated spec or simply a new standard. The demand for it is only going to increase as more average people start ...