Garrett Murray is the founder and creative director of Karbon, an app-development firm. But software isn't his whole life; he also happens to be an award-winning filmmaker. His firm developed the apps Scratch, a quick-input notepad for iPhone, and Ego, for tracking all your Web status in a single glance. Actor Tom Hanks just singled out the app Karbon designed and built for Uncrate as one of his two favorites apps. We'll talk about the windy road to app nirvana.

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