Just received a mail, that they will no longer accept new apps and will terminate their services per dec 1, 2014 …
Scoreloop is shutting down its services ? scoreloop is out | reiti.net DEV BLOG
again some work, to implement something else … if they had said some time earlier I had could done this with the admob updates … 
anyone else uses scoreloop in their apps?
I receive their email too but i don’t use them in my game. Scoreloop belong to Blackberry and now they in trouble with finance so …
Other options are Swarm, Heyzap and google play services. I love Heyzap UI but haven’t tried their API yet.
I’ve used Swarm on first apps, now i’m using google play services.
Google Play services are probably the all-round best choice as it now stands, as annoying as that is.
Can we use GPS on devices without google play store installed on them?
No, you can only use GPS on Google base device .