In addition to app and web Handoff in OS X Yosemite and iOS 8, Apple's new Continuity features include cross-compatible AirDrop, easy tethering, the ability to make and take iPhone calls on iPad and Mac, and the ability to send and receive SMS and MMS from all your green-bubble friends from all your iOS and OS X devices. That means, even if your iPhone is in your bag or in another room, you can still use the carrier messaging channel to stay in contact with Android phone, Windows Phone, BlackBerry, and feature phone users all. So how does it work?
Full story from the iMore Blog...