assuming it's the same anti-piracy mechanism they use for paid apps (and it looks like it is), then you really shouldn't rely on it. Sometimes it takes hours to

assuming it's the same anti-piracy mechanism they use for paid apps (and it looks like it is), then you really shouldn't rely on it. Sometimes it takes hours to report an install as "licensed", and crackers have developed tools (apkmania, i'm looking at you) to automatically strip and recompile apks that contain this license check. The way to do it would be to give developers an API they can use on a server (something we've been asking for a while), but it doesn't look like that's going to happen.