I think cell phones are basically wearable technology and the end of us all...people talk about the mark of the beast - well there ya go! Access to your location, messages, emails, credit card info, camera, phone calls....I digress.
Facebook is still revolutionizing itself. The other day I heard that they're adding a "buy" button to their advertisements, so you never even have to go to the manufacturer's website. It's like they're taking over the internet and eliminating the need for any other website ever. You can play games, text, shop, blog, tweet, get your daily news, etc all in one place. You can't even log into some things without Facebook it seems (like Spotify). I don't think Facebook is done yet.