Do you like Growl? Do you use Xcode? Then chances are you'll like GrowlCode. GrowlCode is a plugin to integrate Growl's on-screen alerts into the Mac OS X developer app, Xcode. GrowlCode integrates the following actions: Build Succeeded, Preprocessing Complete, Compilation Succeeded, Clean Complete, and many more.
To use GrowlCode, you will need to download both GrowlCode and Growl (which is available at Growl.info). GrowlCode is compatible with Xcode 3.0 and Mac OS X Lepoard (10.5) and Tiger (10.4). Instructions for installing can be found on the GrowlCode website.