MySQL provides the underpinnings for many other hosted apps, like Wordpress. It's the lingua franca of web databases, so that's why we're working with it.
Disclaimer: I'm a developer on Cloud SQL.
Disclaimer: I'm a developer on Cloud SQL.
In fact, I would say that you would have a large segment of people/startups interested in leveraging postgresql on the cloud without the headache of managing replication,etc.
The goal of Cloud is to provide the building blocks so people can make great products. The quickest way to making good stuff is to use the same tools that everyone is already familiar with, and I think that's why Cloud SQL exists. If you want more "touch" on the database for more power, there's Cloud Datastore [1]. But we support companies like Costco on Cloud SQL, so it's good for a lot of folks.