@laureth
I see how it can be confusing, because most people, unknowingly, look at the iPhone as a cell phone, when in fact it s a “phone-enable” computer.
These functions are not “blocked” in this sense. They are merely “not present”. That’s the difference.
If you buy a PC to say write professionally, and the PC doesn’t come with a word processor like MS Works or Word or Office. Then that doesn’t mean word processing has been “blocked”, it merely means it hasn’t been installed/enabled.
And for your question, currently the only “un-jailbroken” source of applications is the App Store.
Now, before you come to the conclusion now that App Store is losing money, that is also wrong. There are at least as many free apps as there are paid ones. An app developer is free to offer his app for free. So it’s not about revenue, it’s about controlling venues.
@johnpowell
Exactly!