For the Mac:
Dockables – Dockables gives you quick access to commonly used commands via your Mac OS X Dock.
For iPhone:
What’s My IP? – An iPhone application designed to give you a quick reference as to what your Internet Protocol (IP) address currently is. Available on the App Store for $.99 (US).
Lap Counter – A small application that allows you to keep a running count of how many laps you’ve walked around a track. Available on the App Store for $.99 (US).
You can find free software, plugins, and source code on my development wiki. This wiki contains all the applications in different programming languages that I release to the public under the GNU public license.
