iWebKit is a file package designed to help you create your own iPhone and iPod Touch compatible website or webapp.
MPEG Streamclip is a powerful free video converter, player, editor for Mac and Windows. It can play many movie files, not only MPEGs; it can convert MPEG files between muxed/demuxed formats for authoring; it can encode movies to many formats, including iPod; it can cut, trim and join movies. MPEG Streamclip can also download videos from YouTube and Google by entering the page URL.
Customizing iTunes's genre artwork is as simple as copying an image file into the application bundle and editing the plist file. Here's how.
The Mac has a series of tools that make it easier to work with Unicode.
Facelift Image Replacement (or FLIR, pronounced fleer) is an image replacement script that dynamically generates image representations of text on your web page in fonts that otherwise might not be visible to your visitors.
Version Control (aka Revision Control aka Source Control) lets you track your files over time. Why do you care? So when you mess up you can easily get back to a previous working version.
Sandboxie intercepts changes to both your files and registry settings, making it virtually impossible for any software to reach outside the sandbox.
Explicit is a Cocoa application for splitting AVI (DivX, xviD etc) video files.