Maybe Project Oxygen was too early, but we're slowly getting there. Your mobile device will become a "control device" and your (encrypted) data will get loaded on any suitable machine that you happen to have access to.
Security of your data is key. After that it's just a matter of proving that you're the right person to access that information. I don't care that much if someone steals the iMac, but I really care if someone gets access to the data on that iMac (that's why I have
2-factor auth enabled on my new iMac).
Evolving from main frames, to desktops, to laptops, we're about to enter an era of