We've just submitted TaskLog 1.1 to the Mac App store, and it should be available very soon. It's a pretty big update, check out the list of stuff:
• Customizable hotkeys for starting, editing, and finishing tasks
• Automatically pause the current task when the computer sleeps
• Edit the current task from main view
• Show recent tasks on the entry screen and task edit view
• Export total duration when exporting tasks
• Make it more visually obvious when a task is paused
• Sandboxed, for your protection
• Numerous other minor enhancements and bug fixes

Check out the app page, the release notes, or buy it now.