I know those ads in G!Mail that adapt to the content of your sent and received e-mails are supposed to be benevolent, but both they and Google Desktop sound pretty intrusive to me. I don't want any of my documents or mail to come with the probability of being stored somewhere and used in commercial or any other third party purposes without my knowledge and approval, and I am not convinced that the big G doesn't strive towards ownership of ooooodles of users' data to be able to spam them relentlessly. I'd rather they started charging for everything but remove their bigbrotherly eye.