The USB receiver fits under the keyboard when your transport ... very convenient!
The keyboard is perfectly recconu PC but especially for my mobile use my Archos 101 IT!
In short, the price high in my hair but for a mini keyboard offering many shortcuts, integrated trackball (+ 2 "clicks" and the knob!), The game is worth the candle!
(If I can I will publish my post in the coming months to talk about the fragility / life noted.)
EDIT 15/04/2012: The keyboard still works perfectly!