Windows has the \"system tray\" that houses the clock and alway-running services like MSN, Steam, etc.
I\'d like to develop a wxPython tray application but I\'m wonderin
Under OS X you have the Status Menu bar - the right-most items are often status-related things (like battery status, WiFi connections, etc).
Try searching for NSStatusBar and NSMenuExtra. It's almost trivial to turn an application into one that has an NSStatusBar menu and doesn't appear in the Dock. There are tutorials around on how to do it.