Wilma is a program for quickly finding text lurking in the files on your computer. It does this by creating an index of what words are in which files, which allows it to later find files containing a given word or set of words almost instantaneously. It acts as a Web server to provide a browser-based search interface for either just the local user or network clients.
PodSafe is a podcast aggregator client. It allows you to subscribe to RSS feeds of podcasts and update those subscriptions to check for new files. The new audio files are downloaded and added to a playlist in iTunes, which you can easily sync with your iPod. It also checks for files that have been listened to and deletes them, making podcast management transparent.
Style is the ongoing C++ port of IBM's SWT for Java, itself deriving from IBM's VisualAge for SmallTalk, with two major twists. First, it is written in 100% ISO-C++ with no specific compiler dependencies, and second, it comes with a threading model design that guarantee that users won't be stuck with busy cursors forever. It currently targets OS X, Win32, and GTK.