Well I’m a bit slow on this one, but I finally noticed that mozilla labs has been working on the project previously known as Webrunner. For those who don’t know, Webrunner was a ‘browser’ of sorts that allows a web application (gmail, google reader, meebo, etc.) to be run as if it were a desktop application. More here (Read: Mozilla WebRunner 0.7).
Prism makes strides to simplify the process of harnessing this web application -> desktop application capability. Once installed, opening Prism prompts for a web url and options to create Desktop, Quick Launch, or Start Menu icons. This new version also gives the users options allowing them to display a location bar, status messages, and navigation keys, should they so desire.
Mozilla Labs: Prism