But Google are up front and honest about any information they sell, I do not know of occasions where Google have breached their privacy policy. (bar possibly a few grey area's re wifi sniffing)
Do you know of occasions where Google has broken its own privacy policy? (Genuine question)
This sound to me basically the same as what the BBC are currently doing on iplayer with project cheetah, having a cache of the video at the isp level to save bandwidth!