I just thought, I wonder why Google don't integrate Checkout with Froogle by listing shops which accept Checkout as a payment system. It would be more advertising for the shops and pushing Checkout more.

It could then be part of an advanced Froogle search where you could only find paticular products from shops which accept Checkout.

They have that feature – http://froogle.google.com/froogle?q=ipod&btnG=Search+Froogle&lmode=online&checkout=1

oh i must of missed that then, thanks :)