skip: When Lion ships, we'll be there as soon as possible (hopefully before it ships, even). However, when you're running pre-release software, you should expect some incompatibilities.

David: Unfortunately, the many rules and restrictions of the Mac App Store put in place by Apple preclude most of our software from being there. As well, I can't say I see how it makes it much easier to receive updates. Currently, Airfoil itself alerts you to updates when you run it, and downloads them automatically. With just a couple clicks, you'll always have the latest.