Company Engineered Stuff created these great apps:
Camping List, Checked, School Supplies, Just Drums, Mid-Side Mic Visualizer, Protractor Cam, Stereo Mic Tools, iEQ, InstantGIF, My Wedding Checklist, My Grocery Checklist, My Travel Checklist, NavAlign, 3D Scratchpad, Webcaster, Digital Delay, Digital Flanger, 3D Synth, TV Horseshoes, Quad-Copter, and others..