What does it mean that I have to "apply"? Can day say: "No, we don't like your nose. Do something else!"? Did they do that in the past?
I've been investing now two full months worth about 20.000 USD on learning for iPhone programming, and I didn't apply yet...
Apple has a right to not accept your app at their wish, so you have to take a risk.
I've never heard of them rejecting an application for developer license. But I've heard plenty of stories of them rejecting code. That's the much larger risk with Apple's stranglehold on the iPhone marketplace.
Yes they could. That's the risk behind developing for any tightly locked down environment.
Of course in practice they are unlikely to reject you for no reason.
And you're already taking a gigantic risk by investing $20k into iPhone development. I can't help wondering if this is a saturated market, although there have been a few well publicised success stories, everybody and his dog are now working on a bejeweled clone, and lets face it, even people who buy iphones are going to be looking a reduction in spending on pointless trivia soon with the market the way it is
There is no reason for them not to accept you as a iPhone developer. There is no situation that I know of where they have denied the application provisioning for testing out on the iPhone. They can and will deny your app submission to the app store in some cases. Usually those cases include:
The last of these is the trickiest. A friend of mine had his app rejected because he used a UI widget in an unexpected way. This is pretty subjective IMO but they did tell him exactly why they denied it and accepted it when he fixed the issue.
Also about the 20,000, I can't agree here. In addition to learning and bettering yourself as a programmer, you are assuming that you would be paid for every off hour you spend learning - not very realistic.