Thanks for the warm feedback.
It looks like you are asking 2 questions:
Support for desktop applications / Adobe AIR
We have made progress with HTML 5 offline applications, and it is now possible to create offline applications with local database support based on Safari (and probably also Chrome). This has not yet been fully packaged and documented, but if you would like to explore this path we can help you through this forum. It is our plan to also support Internet Explorer and Firefox, through Google Gears. You can read through the Native iPhone Application tutorial to see how a local database is used.
We have no plans to work on Adobe AIR in the near future, but it is possible that the feature we use to create native iPhone applications will also work with AIR. If you export an application as an iPhone application, it creates a folder that contains javacript, css, html and images (together with some Objective C wrappers). The html can work out-of-the-box with Safari. You may want to try and see if it also works in Adobe AIR.
Support for visualizations / Ajax.org
JP has had success with integrating OpenFlashChart with Tersus
For best results, use the Firefox browser..