Frasier Speirs, one of several well-publicized developers to leave the iPhone over objections to Apple's App Store policies and controversy surrounding app rejections, has decided to return, post iPad, and his reasons are intriguing:
I suspect that the days of everyone buying a MacBook to get online are soon to be over. I've already written about how I see our three-Mac family turning into a one-Mac, three-iPad family over the next hardware cycle and I imagine that scenario repeated industry-wide over time. Already the ratio of iPhone OS devices to Macs is 5:2.
He believes Apple can and will reject apps, and that the frontier days of computing are giving way to the mainstream, appliance future.