OS Feature request

I’m trying to create a cool operating system that has it’s main applications written in flash. What i mean is, you write a program in flash, and it becomes a real application.

But i’m still working out the basic kinks, so what I’d like to know is, would you guys tell me what features would make a good OS?

For example, one of my friends suggested making the installer let you play a small game, browse the internet AS the OS installs, and/or watch a movie.

What else can you guys give me? Don’t give me obvious stuff like “make it reliable”, or “make it hackproof”, because thats something every OS should have, and im doing more than the basics.

Thanks.