What do you think the most important product to Apple is? I have an idea (and think the answer is fairly obvious): OS X. - Think about it, OS X is at the centre of everything Apple does, iPhone, iTouch, Apple TV, their Computers. - OS X allowed the company to move on from decades of legacy crud (QuickDraw, Extensions etc.). - Without OS X, Apple would not be in business, there core business is computers and they wouldn't sell many today with something based on OS 9. - The sheer amount of years and numbers of resources and money that has gone into developing the system (from the NeXT days to present day). There are some people who have these fanciful notion that Apple is a hardware company. Please suggest 1 piece of hardware that is anywhere near as important to Apple (that couldn't be replaced)? If Apple had to scrap the iPhone design, they could come back in 2 years with something very similar (if not better) without losing out too much. If Apple had to scrap OS X, they'd be finished. I'd be interested to hear your thoughts?