Google Play game developers and players alike are getting a quartet of game changing additions today: real-time multiplayer, leaderboards, cloud saves and achievements. And that's not all -- the latter three services will function crossplatform between Android, iOS and the web. The whole initiative is called -- unsurprisingly -- "Google Play Game Services," and it's available today in a smattering of games. Unlike Apple's Game Center application, what Google's offering is backend support for developers rather than a standalone application. Think of it more like
