Growl is one of my favorite things about the Mac platform -- it's a notification service whose customization and power is unmatched on anything I've seen in other operating systems. And it's going through some changes in the near future: Project Lead Christopher Forsythe has posted on the Growl Google Group that as of version 1.3, Growl will move from a notification service into a full app, mainly to be included in the actual Mac App Store.
That has quite a few ramifications, both good and bad. The first is that Growl will be able to take advantage of everything the App Store offers, including ease of installation and upgrades, as well as discovery and any future features planned for Mac App S
