We don't expect Google as a first party service to provide all the answers. Part of the reason a platform is successful is because there are very very important things from other companies and other developers on top of the platform.
We have seen a lot of interest from Chinese developers on Google Play because the extent to which Android is used. If we can figure out a model by which we can serve those users, it would be a privilege to do so. So I don't think of China as a black hole.
Users are trying to discover apps; we are trying to improve the app discovery process, and developers are trying to reach users. If you step back, it's a problem we solved with search and ads in search.