Every one talks about MONOpoly, not DUOpoly, for a reason. But lets back up and just use the more generally used “anti-trust”. The law (in the US) is basically if you either a) collude with competitors to price-fix or restrict trade, or b) own so much of the market that your price is price fixing and there is no/little unrestricted trade, then you a violating anti-trust law. There is a similar intent in other places and the bar is placed higher or lower.

If you have the choice to buy phones which use one of several app stores, then you have choice in app stores. You also can’t install a Corvette engine in a Toyota Corolla but I don’t see everyone screaming about that. If you want a Corvette engine I do know the car you can chose in order to get it.

And yes, two non-colluding choices is choice. People aren’t suggesting that Apple and Google are all buddy buddy so there is choice. I suggest we all make one we are happy with and move on. =)