Steve Jobs on the iTunes app store:
The second platform we support is the App Store. It’s a curated platform with 225,000 apps. It’s a vibrant community — there’s nowhere else you can find this many apps.
We get about 15k apps submitted every week. They come in up to 30 different languages. Guess what: 95% of the apps submitted are approved within 7 days. What about the 5% that aren’t? Why don’t we approve them? Let me give you the three top reasons.
The number one reason: it doesn’t function as advertised. It doesn’t do what the developer says it does, so we tell the developer to change the app or the description. The second reason: the developer uses private APIs. … If we upgrade the OS and the app breaks, we won’t have a happy customer.