I think this decision is also about preventing the virus and trojan hell like that on Windows platform and other "unauthorized" code to be spread on millions of

I think this decision is also about preventing the virus and trojan hell like that on Windows platform and other "unauthorized" code to be spread on millions of devices. It is much easier and cheaper to examine and control such restricted binaries before releasing them on iTunes. About Flash, Java and other outdated WM-based crap - they are pragmatic. They don't need any WM to run apps on their hardware. Modern CPU is the only necessary WM. So, there will be much less complains about crashes, bad performance and out-of-memory issues. Together, these two major problems sank the reputation of Windows and Apple want to avoid them. So, there is nothing special. Apple can dictate rules which helps them to make more profit, and of course they will. Wanna freedom - there is Android. Google trying very hard to position it as Linux (community-driven open and free platform) for smartphones.