I was thinking about this myself, and I'm having fun imagining an ongoing argument at Google: M: I just don't know. 10% seems high. A: But it's a great servi

I was thinking about this myself, and I'm having fun imagining an ongoing argument at Google: M: I just don't know. 10% seems high. A: But it's a great service, and developers will pay for the convenience. B: M's right, 5% would be a better rate; we're not planning to force people to use it and if it's too high they'll just go somewhere else. 5% might even be too high. M: I'll think about it. A: But you've been thinking about it for weeks! We can't release until we agree on a number. And I still... [all are interrupted by video of Apple announcing their 30% policy with mandatory participation] [pause as they pick their jaws up off the floor] M: Ten. Go.