I honestly don't know how many of you know what this is, or why I'd be so excited, but just in case: Optimus Keyboard preorders! Woooo! (http://www.artlebedev.com/everything/optimus/)
For people/places that have to deal with multiple languages, this would be the perfect solution (depending on price, of course). NATO and the UN would be obvious customers of such a thing. If they can bring the per unit price down to be comparable to regular keyboards (or, better yet, get them to be included in computer purchase bundles), I predict a very lucrative future for them.
That's an awesome keyboard, however I think the ~$1600 price tag may turn off a few prospective buyers (such as myself).