Google Visualization API beyond Google Spreadsheets

Google announced opening up the Google Visualization API beyond Google Spreadsheets and adding more capabilities for developers.
"The Google Visualization API lets you access multiple sources of structured data that you can display, choosing from a large selection of visualizations. The Google Visualization API also provides a platform that can be used to create, share and reuse visualizations written by the developer community at large."

Concerning Google I/O developer conference, Google added some new features for the Google Visualization API:

• A JavaScript interface to create add-hoc data tables on the client.
• The new interface allows developers to create non Gadget-ized visualizations.
• The AJAX API introduces another cool new capability.

Visualization Gallery
Code Examples