It'd cut down on 95% of the beta reviews for sure, and the rest could probably be culled by searching for "ios 7" in the review body and/or combine it with look

It'd cut down on 95% of the beta reviews for sure, and the rest could probably be culled by searching for "ios 7" in the review body and/or combine it with looking for apple ids that have been used on an ios7 device.