I'm not sure how this will "make PCs history", unless Google plans to outlaw having your data anywhere else but on their servers. If you don't like the privacy

I'm not sure how this will "make PCs history", unless Google plans to outlaw having your data anywhere else but on their servers. If you don't like the privacy implications of giving Google your data, then don't use the service. Personally, I don't plan to--I want my data on my own machines, and nowhere else.