we need to realize that iphone OS is actually just that...an OS. What you are saying is kinda like saying that we would be incapable of finding valuable web apps or locally installable apps on windows/linux/whatever OS we use on our PC. Because there are no restrictions there and never have been.

1. It's only a matter of time until apple realizes this model is not good for anyone. 2. Android (who by the way is powered by the very people who specialize in filtering out the crap on other platforms) will dominate the next few years.