Back in September 2008, Fraser announced he was ceasing new iPhone OS development in a widely-linked post titled "App Store: I'm out".
Fraser wasn't the first or last to announce that he was giving up on the App Store, but he is the first that I'm aware of who has come back. Why? Because to ignore the iPhone OS is to risk missing too many potential new customers. He says that he hasn't seen any comparable alternatives to the iPhone platform, and with the arrival of the iPad, Apple's mobile device platform is the place to be. "I have to ask myself if there's a train that I would rather be on," says Speirs. "I don't see one right now, and I don't see one coming down the track."