Google release chart API in their ‘off’ time

Google has just rolled out an impressive v1 of a new charting API.

Having recently reviewed a series of charting frameworks for .NET, i settled on Aspose.Chart because it was simple, lightweight yet fully-featured.  I had a requirement for a bar graph overlaid with a line graph that used the y2 axis, and to be able to have labels for various data points along the way.  Something like this if you could imagine the red line was a bar:

So Google isn’t quite there yet for my requirements, but there are a heap of features, and such an elegant way to encode all the info into a compact query string.