Toggl - Toggl is an online time tracking tool. It features 1-click time tracking and helps you see where your time goes. Free and paid versions are available.
TripleA - TripleA is a free (under GPL) turn based strategy game based on Axis & Allies board game.
Harvest - Simple time tracking, fast online invoicing, and powerful reporting software. Simplify employee timesheets and billing. Get started for free.
Heat Pad - Heat Pad – Relaxing Heat Sensitive Surface is a beautiful app that simulates multiple heat-sensitive surfaces reacting to the heat of your fingertips.
RescueTime - Time management software that shows you how you spend your time & provides tools to help you be more productive.
Particlescape - Particlescape app lets you create stunning patterns at your fingertips.