Have you considered getting something like a mobile beamer to get a bigger screen? Particularly if the ultra-book is already HD capable. Yes, it would require

Have you considered getting something like a mobile beamer to get a bigger screen? Particularly if the ultra-book is already HD capable. Yes, it would require a "free" wall, but maybe that's OK. A bigger problem might be power consumption. So overall likely not very viable, but maybe someone has some experience with this?