Gestures work perfectly, I wouldn't ever disable these. Any apps that may conflict with gestures will need to be fixed by their developers, as according to what I read, Gestures will become an official feature of iOS 5.
There's no going back. If you decide to enable gestures, make sure you let developers know of any problems you may find, so they fix them by the time the new version comes out.
There's no going back. If you decide to enable gestures, make sure you let developers know of any problems you may find, so they fix them by the time the new version comes out.