The new Nortek mouse, co-designed by boffins at Samsung, looks like an admittedly sexy RSI disaster waiting to happen.
It's obviously tiny, and features a retractable cord which helps make it nice and portable. The selection of shiny colours also make it aesthetically appealing. But I just can't picture this thing being comfortable to use in any way, shape or form.
So ultimately it's a question of style and portability vs comfort. If the former is more important to you, you can grab one of the Nortek mini-mice from Officeworks for $50.