iStumbler: wireless discovery tool for Mac OS X
iStumbler is the leading wireless discovery tool for Mac OS X, providing plugins for finding AirPort networks, Bluetooth devices, Bonjour services and Location information with your Mac.
iStumbler is the leading wireless discovery tool for Mac OS X, providing plugins for finding AirPort networks, Bluetooth devices, Bonjour services and Location information with your Mac.


Cappucino (http://objective-j.org/)
Cappuccino is an open source application framework for developing applications that look and feel like the desktop software users are familiar with.
280North: Company behind Cappuccino, Atlas, 280Slides
http://280north.com/
JarBundler is a feature-rich Ant task which will create a Mac OS X application bundle from a list of Jar files and a main class name. You can add an Icon resource, set various Mac OS X native look-and-feel bells and whistles, and maintain your application bundles as part of your normal build and release cycle. It is free software licensed under the GNU General Public License.
Mac Widgets for Java are a collection of widgets seen in OS X applications, offered in a Java API. These widgets help Java developers create more Mac-like applications. Their usage is not restricted to Mac though, as they will render across platforms.
http://code.google.com/p/macwidgets/