Building iPhone apps that don't suck

I like this piece by Fast Company, "How to build an iPhone app that doesn't suck." I think we'd all agree that apps rock. But, truth be told, for every must-have app there seems to be 10 lame ones. Fast Company's slide show provides a quick guide for marketers to follow. My favorite in the list? The WebMD app. Useful content served up through a simple interface.