[cd34]

I always thought it would be cool to have a resistive mouse.

Dragging a large document to the trash can would be harder than dragging a short document.

That and an optimizing keyboard. It would analyze your typing patterns and put a small message on the screen that it has changed the key positions of frequently used keys to the home row and shuffled the less useful keys to the edge. With today's LCD technology, switching keyboard layouts could be done quite well. Might play havoc with typing speed though.