If you are passionate about your keyboard and using different program's with lots of different shortcuts then this is a product for you.  The Optimus keyboard is made up of tiny lcd screens for each key that allow you to instantly change the whole keyboard appearance at the touch of a button. 

The keyboad comes with software thats gives you a lot of flexibilty to customize it to your taste and needs.
Here's an idea of the expected specifications:

• A plastic body (width: 537 mm, depth: 173 mm, height: 38 mm)
• Extra-durable polymer plastic keys (20.2×20.2 mm, visible area 10.1×10.1 mm)
• 48×48 pixel screens, Highcolor mode (65536 colors)
• OLED (Organic Light Emitting Diode) screen for keys
• USB 2.0 connectivity
• 4-5 year lifetime
• A key-saver mode
• Support for animation on keys at 10 FPS
• Ability to form a mosaic using a combination of key images
• OS independence
• An SDK for complete display customization
• Swappable keys and support for keys without displays
• 32 MB SD card for storing basic layouts
• Non-stop glow time at nominal brightness of 20,000 hours, after which display quality will diminish
• An ambient light sensor which can be used to automatically adjust display brightness
• A viewing angle of 160°

As you might expect from this ground breaking design it comes at a price and very high price especially for a keyboard.  At the time of writing you could expect to pay £250+.  For more information click here.