Sure, that's true. I have no problem with businesses making money. But when a business can run an operation in a market with 90% (or whatever) profit margins,

Sure, that's true. I have no problem with businesses making money. But when a business can run an operation in a market with 90% (or whatever) profit margins, it's an indication that the market isn't open to competition. Which is exactly why anti-trust law exists. Why? Because competitors will see how much money Apple is making and move in to capitalize. I don't think computing devices should become walled gardens where companies are free to gouge their customers. Fees are most assuredly passed onto consumers. They cut into the providers bottom line. Providers must charge at least 30% markup just to break even when offering through the app store. This is simple math, and self evident. The app store itself is not a particularly great piece of technology either... it's simply a monopoly on the iPhone user audience. Could the app store improve if it had healthy competition? e.g. better searchability/functionality? Personally I'm amazed at how bad app discovery still is on both iOS and Android app stores.