podcast: @ hanselminutes
A "pure web" based drawing app, similar to Vision.
Free Flowchart Software & Flowchart Examples | Lucidchart
This tool and the demo is PHENOMENAL!
The same app also works as "plugin" to Office 13 (and Office 365),
as well as Google Apps (Docs), and can keep data on Google Drive.
Even more, it allows for online collaboration.