Your Next Pointer Device?

Anonymous Coward writes "Replacements for the rodent on your desktop are regularly being introduced. Here's yet another pointing device for you. A pen connected via radio to your PC. Movement is tracked by measuring the rolling of a small ball at the tip of the pen. This means it works on any surface. Take a look here. No Linux drivers yet, and I'll wait for the USB version. But I like the idea of a pen."