I'm at the 95% point of upgrading my iPad Mini to an iPad Air and I've been trying to learn enough about keyboards to make a good selection (an important, but not the only, reason for my likely upgrade to the iPad Air is my need to graduate from this on-screen keyboard which I only seem to be able to operate one finger at a time) to a separate physical keyboard. I've watched the various YouTubeex offerings reviewing the competitive keyboard offeringss and have been leaning toward the slightly more expensive
Belkin Ultimate (the $129.95 one), but the Belkin web page for that model, at least, notes that there is an apparent operating conflict with IOS7 and they're working on it. My other issue with that Belkin model (maybe it's not limited to that model) is that apparently it is NOT designed to put the iPad Air to sleep when closed and awaken it when opened. This issue is, I think, entirely separate from the sleep/awakefulness of the keyboard itself which is a concern of the postings here.