I just realized that the OmniFocus icon in iOS has kind of a glittery effect and the check box seems to wander around the icon. Never noticed that before.
Interestingly, last night I also noticed that the clock icon has an actual moving seconds hand. The line is so thin I never saw it before. Went I went to my RSS feeds this morning, I found that I had been scooped on this by the guys at LoopInsight.