Google App Engine?

Google App Engine - able to host and run your web application on their own infrastructure.

App Engine applications are easy to build, easy to maintain, and easy to scale as your traffic and data storage needs grow. With App Engine, there are no servers to maintain: You just upload your application, and it's ready to serve your users.
You can serve your app using a free domain name on the appspot.com domain, or use Google Apps to serve it from your own domain. You can share your application with the world, or limit access to members of your organization.
App Engine costs nothing to get started. Sign up for a free account, and you can develop and publish your application for the world to see, at no charge and with no obligation.
A free account can use up to 500MB of persistent storage and enough CPU and bandwidth for about 5 million page views a month. During the preview release of Google App Engine, only free accounts are available. In the near future, you will be able to purchase additional computing resources, said Google.

Google App Engine applications are implemented using the Python programming language. The runtime environment includes the full Python language and most of the Python standard library. Although Python is currently the only language supported by Google App Engine, but looking forward to support more languages in the future.

I think, Google becomes "the Internet Operating System", much more like Microsoft. I hope, they won't approach the way Microsoft monopolizes the computing technology these days and the past. Let see how the Google goes...

Reference
Google App Engine Development