Considering what kind of experience Apple wants iPhone owners to have, they've extended an enormous amount of effort to help developers.
1) The existence of the App Store and its one-click purchasing, for example, has created business opportunities and revenue that are unprecedented for the amount of effort it takes to enter that market. Guys are making tens or hundreds of thousands of dollars by coding up games on their couch. That everyone is now taking this for granted means one thing: Apple's execution was flawless.
2) The protection of the market so that it remains an impulse-buyers paradise relatively free of buggy software, and completely free of malware, requires an enormous investment in hiring and training reviewers. Sure, developers hate the wait and the uncertainty of approval, but this process is what has made the market as profitable as it is. I can buy an app without fear that it'll steal my bank account #, which apparently can't be said for everything in the Android marketplace.
As you've said, the process has greatly improved over the last year. Consider the fact that this is the first time Apple has done this, and the first time anyone's done it on this scale. That the process has improved even as the submission rate scaled up to thousands of apps per day is incredible.
3) The controlled deployment of APIs, released when they're ready rather than when developers whine for them. This requires restraint and planning that almost no other vendor can pull off. Anyone who's had to re-write entire codebases because Microsoft couldn't decide if today's flavor was COM, DCOM, ActiveX, or .Net can appreciate this.
I doubt that any of the crybabies will appreciate the above, because they think it's all irrelevant if they can't port their Flash game with a mouseclick or write in C#. But they're also only seeing it from their point of view. In the dozens of outraged blog entries that have ascended HN's front page this week, very few show any evidence of looking at it from other points of view, and arguably the most important points of view: Apple's and their customer's.