Access to gmail is spotty and unreliable, like most other google services. Android phones connect to Chinese android market and most have alternative chinese only app markets. If google where to stop access to android market, people would get pissed, but switch app-provider.

For the rest, these are barely used services. I don't even think hangouts are accessible, since it's a part of Google+, which is blocked. Maps? Year, it's nice, but so is Baidu maps. Picasa? Which economy is impacted by picasa?

> China's weakness is they cannot censor where it crimps the economy too much. It's brilliant.

While this is true, google is not one of them.