Rocketfish have created a pretty nifty portable wireless laser notebook mouse called the twister. I'd like to emphasize the portable aspect because it is a bit smaller than the regular mouse and has a USB receiver stored inside the mouse with which you simply plug into the laptop and yer good to use the mouse! The mouse does require a couple of batteries but it is a pretty light device.

The tail end of the mouse even allows for a bend to make the mouse fit comfortably in your palm and then you can straighten it out to be more accomodating when packing it away. Well thought out, and you've got to lose the wireless aspect of it. Plugging it into my XP-based laptop showed no problems when it came to plug-n-play and I was using it immediately without any problems.

It did take me 5 minutes to realize that it does have a center sliding pad which acts as the scrolling wheel and there's a third button on the side of the compact mouse to which you can assign another function (i.e. shutdown the current application).

If you are looking for a decent mouse which has the basic functionality and perhaps a couple of additional features (i.e wireless, sliding scroll pad and a third side button) AND most importantly compact then this is the device for you! If you suffer from any form of carpel tunnel or even sore-wrist type action then this is not for you, the ergonomics of this mouse are for the non-IT addicts.