DARE for AIR
Simply edit the file system and press refresh in the browser. It is that easy.
RJ Owen tried out the initial release:
I was honestly much more impressed than I thought I'd be with DARE. My experience with local servers in the past has been anything but painless - there's usually some slough of configuration files to set up and little properties I need to configure to get the thing running right. DARE installed quickly and I didn't have to do anything at all to get it up and running. The install process was everything it should be - clean, easy, and complete.
He also discovered another feature not described on the website:
It's worth noting that while DARE is targeted for the AJAX community, it has the capability of quickly wrapping SWF's too. If you're a flash or flex developer who doesn't want to bother building AIR apps through those interfaces, DARE provides an easy way to package your SWF in a simple AIR wrapper.
Unfortunately, at the moment, there is only a Mac version available.