Follow the link in the post title to see a TED talk from 2010 about manipulating computer software in real space, it'll blow your mind. Especially when he drops the 'this technology has been around for 15 years' bomb on you.
Here's a link to the work Oblong is doing now as well as an article from Tech.mic.The tech may not have reached the mainstream consumer yet but if Underkoffler is right, it is inevitable. I can't wait.