In Hollywood, a botched career often takes many years to reverse—if it turns around at all. But in tech, where failure is worshipped, the men who fail spectacularly don't have to worry about history. Each new day is a new chance to play with someone else's money, no matter how badly you fucked up the last time. Just ask Peter Pham.
It's odd to have a decent answer to "What was the worst ____?," but Color was the worst app. It did nothing amid fanfare, secured $41 million in order to accomplish this nothing, and then it just evaporated without warning. An obscene, expensive pixel farce. Watch its creator try to explain a startup Bay of Pigs.