Since Google I/O is just days away, it is no wonder that we have a lot of leaks and recent one points at a new Google Play Service, the Google Play Games.
It has already been rumored and teased that Google plans some sort of game-related announcement for Google I/O and Android Police site managed to dig out some info that came from the new version of Google Play Services that is currently being distributed. According to first details, Google Play Games will feature leader boards, matchmaking, achievements and invitations and it appears that it will be connected to Google+.
There are still a lot of unknowns but since Google I/O is scheduled to start on May 15th, we guess we'll know for sure in two days.
Source:
Androidpolice.com.