If you're looking for a full-featured image editor at a relatively low price, Pixelmator fills the bill nicely.
Sporting a smooth, Mac-friendly interface, Pixelmator's layout is much like Adobe Photoshop with separate toolbars offering standard selector and paintbrush-type tools, a color picker, a layer manager, and a brush picker with large array of options. If you don't need the more advanced features and filters of Adobe Photoshop, Pixelmator is an affordable and easy-to-use alternative. Version 2.0 adds a laundry list of new features including a new look, several new tools, and new brush and gradient editors.
Also this week, we have the latest version of TotalFinder, the app that adds tabs to the Finder and lets you view the Finder in dual-pane mode for easy file transfer. Our game this week is Clan Lord, the old-school fantasy online RPG that's not up to today's standards for graphics, but offers tons of fun and challenging gameplay.
Don't forget to check out this week's iOS app collection: Adding image effects on iOS.