There has been a lot of buzz around new innovative User Interfaces recently. My personal favorite is Pranav Mistry’s SixthSense technology, presented at TED talks India 2009.
Another innovative interface is Light Touch, by Light Blue Optics. However I wonder when I can just use my brain to control the keybord and any other control

Hi Kerstin,
Sorry for not dropping by earlier. SixthSense is interesting but requires space (for movement and gestures), Light Touch requires a surface etc. Why not explore something that is on the market? It might not do everything you want (advanced text entry etc) but I guess it will come. So why not have a peek at emotiv, http://www.emotiv.com (yes – it is commercial but still – it is quite interesting).
Regards – Nils