A few things tell me the only folks who are going to buy this are schools and government offices and corporations who have money to waste. It may have a coolness factor but I expect it to wear off just as quickly as the initial frustration of setting it up. Looking down into a table top device may seem neat but who really wants to be in that position for an extended period of time? Microsoft has produced an expensive novelty device and if it takes off I will be surprised. I don’t need a table sized Iphone. Give me touch capabilities on a standard desktop screen then I might be interested. Give me a touch screen style hybrid display keyboard to go along with a regular display and I might be with it but something like this has zero ROI.
The target market for the thing is hotels, replacing the tables you get in lobby sitting area and the rack of annoying brochures for nearby tourist traps by embedding “soft brochures” into the table.