This keyboard works more like a touch screen than a keyboard, there are no actual keys. This means that it is not limited to standard keyboard set-up. It's more like an extra screen that happens to be touch-sensitive.
According to the website, here are some possible uses for this keyboard:
1.) Imagine you are playing a game and the unnecessary keys disappear, leaving only the keys you'll need for the game. It would also rename those keys to better coincide with what they are used for. Not only that, it could serve as an additional screen where you can see all the heads-up display options without having to change the main view.
2.) Part of the keyboard disappears and becomes a tablet for designers.
3.) No more pop-up menus blocking your work. As you can see from the picture below the keyboard can change to a swatch without having to cover your screen.
4.) No more having to exactly memorize keyboard shortcuts. When you load up Photoshop (or whatever program you use) the keys change and actually tell you their function instead having to memorize the list.
Some critics are saying that the key-less board will make it dificult to use because of the lack of tactile feedback.
This keyboard concept was designed by Art. Lebedev Studio.
Courtesy of Abduzeedo