Perhaps make a "Lite" (aka free) version, and ask us to review that? Or go the Canabalt route, and have the whole game playable (with slightly reduced function

Perhaps make a "Lite" (aka free) version, and ask us to review that? Or go the Canabalt route, and have the whole game playable (with slightly reduced functionality due to not having accelerometers, multitouch, etc) on a website and then a pay-for download on the App Store.