Serial Keypress Program

I read somewhere recently about a program that interprets serial input data on a computer and converts it to key presses. Anyone know what program that is?

Thanks,
Mowcius

http://www.aacinstitute.org/Resources/ProductsandServices/AACKeys/AACKeys.html

Also :

Gadgets og teknologi | Dansk Tech Blog - Mikmo can do some of the same + a lot more

Thanks

Mowcius