I’ve always been interested in computer interfaces, both software and physical. We are still using the same keyboard and mouse as was used 20 years ago. Now I’m not saying these are bad methods, I just think that there is room for improvements. Same goes for the software side.

Multi touch screen is one of my favorite "different approach". It seems like a very natural way to interact with computer. Here’s an interesting presentation from Jeff Han about multi touch screen use:

Of course the changes doesn’t have to be so big. I’ve always wanted to research eye tracking combined in mouse use.