Google I/O, the most important developer conference for world's largest mobile platform will take place on May 28th and 29th in San Francisco, to decide future of Android in 2015.
It's rumor that Google going to launch Android Pay, the predecessor of Google Wallet. Still not sure what Google will unveil in developer conference.
Read more here about Google I/O 2015: Curtain Raiser: The World Awaits Android Pay at Google I/O 2015