I think the future is more like a Flat Screen TV, kinda like the one I saw demonstrated on the web a year or so ago by some guy out in California. I believe he was from one of the colleges, but I can't find a link. It was like a giant touch screen. The real differences will be input devices. Voice, visual activation (like hand sign but not limited to that) telepathic
Out of those offerings, I'd go with the BulbPC. Although I'd expect wireless/infrared connections than plug-ins. I think it might have potential in todays market just as an "plug-in" point for business desktops.
Can't see how you'd work some of the others.
