ApplPi is a stochastic noise machine that creates a soothing background noise for those who can't work in complete silence or need to mask distracting noise. It creates sound similar to any noise machine, but it's more musical and harmonic. Additionally, you can control the frequency (note) of the sound and choose from built-in presets of noise/sound.
ActoTracker is an application for keeping track of activities on your desktop so that you don't have to. Think of it as an app for bookmarking desktop documents and applications. It can also bookmark things that are not usually tied to a URL such as Outlook email message or Filemaker records. It can be extended to handle additional applications by writing custom AppleScript plugins. ActoTracker is somewhat inspired by the GNOME Activity Journal (Zeitgeist framework), and it tries to solve a similar kind of problem for the end user, although in a different way.
To Do Quick is a very fast, simple, and basic GUI text editor with two features that help you manage your list of tasks. First, items can be prioritized by moving them up or down without cutting/pasting. Second, items can be marked "done", which timestamps them and moves them to the bottom of the list.
Night Time Display is an Android client which displays the current time in an LED font. It can be used as a bedtime clock. It has a custom set of themes to view different font colors, can change to 24hr/12hr mode, can hide the seconds, can blink the separator, displays a large font and is stretchable according to the screen size, and supports both Landscape and Portrait modes.
repla can turn any command into a shell. It does this by prepending the name of a command to each commandline before executing it. It can also add lists of arguments which are often needed, either prefixed or affixed to the commandline. It really shines with vcs or build commands, such as git, svn, hg, make, configure, etc.
headstak is a stack-based task list. Before you start a task, or when you are interrupted while working on a task, you push the current job onto a stack. When the interruption finishes, or when the task is complete, you pop it from the stack - leaving you facing the job you were working on beforehand at the top of the stack. Run it and it should appear on your status bar as a little stack of stuff on a head. It is activated with the Control-Command-0 global hotkey.