Google has released a new version of the Google Visualization API that features new chart types including sankey diagrams, calendar charts and annotation charts. The release also includes new features and improvements such as string to number conversion in datatables, the ability to export corecharts and geocharts as PNGs, and crosshairs for scatter, line and combo charts.
The trouble with building mobile computing applications is that end users have little tolerance when it comes to how they expect those applications to behave. Never mind the fact that mobile applications are amongst some of the most challenging to create; the second somebody has a less than optimal experience they're off to another application. Needless to say, that puts a lot of pressure on mobile application developers.