At first glance, this looks to go somewhat beyond Google's Prediction API, which (at least from my experience) is pretty limited in its usefulness.<p>Its nice to see tools for analyzing your data as well as multi-class classification, and some tune-able parameters but this doesn't seem to bring anything 'new' to the game.<p>All the hard parts, feature selection, noise, unlabeled data, etc are still up to the end user, which makes me wonder how many people will try this out and get poor results.<p>It would be nice to get an idea of what sort of model they are using on the backend or even having a choice of models.