(I am not the developer/publisher, just passing the info.) Tried it with iPhone 4 + 5, iPad 3 + 4, Apple TV 2, MacBook Pro, MacBook Pro Retina. Works pretty well. Kind of magic. Easy setup (later on automatically). Perfect for texting (SMS) quickly. Highly recommended! Free for the weekend!
Link to Mac App Store:
https://itunes.apple.com/app/type2phone/id472717129?mt=12