Comment The danger of monopolies (Score 1) 64
It may seem like a good thing that apple has this single app store for all of its devices, but the reality is that it is a monopoly. Monopolies tend to be a really bad thing for markets. If allowed to continue, monopolies tend to harm competition badly. Thing is, that they've got a solid revenue stream and nobody else even has a hope of getting a fair shot at obtaining a big enough chunk of the market to make them matter. The monopoly could also dictate unreasonable terms to people wanting to make use of their system.
Apple, for example, has been demanding a 30% commission from paid apps, subscriptions must be handled via its payment platform (again, with this 30% commission), and, oh yes, if Apple decides to compete with your app, you've already lost because they don't have to pay that 30% commission to themselves and they just preinstall their competing app with the next update.
This allowed them to branch out in other markets, competing under favorable terms with others. They're, for example, competing with Netflix and Spotify. While those are established brands in their respective markets. At the same time Apple does not want to be compatible with Android, it's only so because it was forced to be through anti-trust action.
Another monopoly is Microsoft. It used its dominant position on the desktop to push all competition to the point of irrelevance. Dr.DOS, Netscape, and Be Inc. (BeOS) come to mind here. Also, it is bending over backwards to make sure its office products are incompatible with the rest of the world.