In collaboration with http://heyzap.com
here is a plugin for whole Heyzap combo:https://github.com/ar2rsawseen/GiderosHeyzap
Heyzap offers a great combo of leaderboard and achievement management (even between apps). Additionally it also provides Ads and a way to checkin your app with options to posting to Twitter and Facebook. Thats all for both Android and IOS platforms.
And now available to Gideros.