At the time it was low compared to any retail software distribution. If (a big if) a developer could get on a carrier App Store (they existed) it was much more

At the time it was low compared to any retail software distribution. If (a big if) a developer could get on a carrier App Store (they existed) it was much more than 30%. Go back and watch the keynote. Developers cheered because 30% was so much lower than any other stores available at the time.