I came across a concept video of Microsoft Courier today and I was blown away. I have wanted a device like this for as long as I can remember; it is basically the same form factor as Penny’s computer “book” from Inspector Gadget. It was a folding computer book that had two separate touch screens.
There seems to have been some research done by Microsoft on the concept for several years. I came across this research paper on Courier that describes it as a “Collaborative Phone-Based File Exchange System.” There is more information about the MSR Courier Group here. A lot of the interactions in the demo video remind me of some ubiquitous computing paradigms; the hand writing of the URL into the web browser in particular.