One month as an iPhone OS developer

Marco Tabini is a part time iPhone developer. He recently blogged about his initial experience selling his app through the App Store. His lessons include:

1. Understand your market
2. Focus, focus, focus
3. Spread your risk
4. Release early, update often
5. Never, ever give out a paid app for free
6. Never, ever sell your app for $0.99
7. Hope for the best, prepare for the worst
8. The App Store is a marketing medium
9. Don't get mad at Apple

Details in "One month as an iPhone OS developer".