[fennecfoxy]

You're saying Apple's iMessage is a response to competition as a feature to compete.

It is, in actuality, anti-competitive as there is no way to a competitor to participate other than creating a separate platform or App for messaging. Because iMessage comes with and is supported by both all iPhones and Apple it is an uneven playing field; it is impossible to compete & is therefore anti-competitive.

The same thing would happen with TMSC, at the moment Apple buys out a large chunk if not all of their production capacity for a node - this is fine, it's just business. If Apple said to TMSC, "we'll buy out all your capacity for this node but only if you contractually refuse to sell this node to any other company while we're using it" this is anti-competitive behaviour.