You must have something wrong, could be a number of things. Id's wrong, or in the wrong place, Need to see your LogCat to see what the exact problem is.
Well funny enough I have had this issue multiple times even with the correct GS IDs. Get another android device and try it out and see if this happens.
good idea! I was able to see an error message on a different device whereas the other device just 'hanged' i thought the debug certificate would be enough....but after generating a release Certificate fingerprint and putting the games-ids.xml to the res/values folder it's all working