I don't think it was meant to be a competitor to the Air, although we'll have to wait on the pricing to see what Microsoft is actually trying to do here. But in

I don't think it was meant to be a competitor to the Air, although we'll have to wait on the pricing to see what Microsoft is actually trying to do here. But in all probability this is an iPad competitor, and iPads fall short in the exact same way in all those situations as well. Also, planes generally have trays, and reclining in a couch puts your waist at about hands level, so both of those aren't really that gimped by this setup. Living in America I can't speak much for train travel but I would think they'd have some kind of tray, but I could be wrong.