Jaasta's E Ink Keyboard uses keys with E Ink displays, so the image can change when you change a language, or use a certain software (for special short-cuts), etc. A dynamic keyboard is not a new idea - we've seen phones with small E Ink keyboards (such as the 2010 Samsung Zeal) and full keyboards with OLED displays. But this is the first full QWERTY keyboard with E Ink displays.
Jaasta plans to fund this project soon with a crowdfunding campaign. The price will be around $300.