Prediction API: Every app a smart app by By Travis Green of the Google Prediction API Team.
From the post:
If you’re looking to make your app smarter and you think machine learning is more complicated than making three API calls, then you’re reading the right blog post.
Today, we are releasing v1.2 of the Google Prediction API, which makes it even easier for preview users to build smarter apps by accessing Google’s advanced machine learning algorithms through a RESTful web service.
I haven’t played with this but could be interested in hearing from someone who has.