Apple blocks Palm Pre synching: Who cares?

Yesterday Apple (AAPL) finally made good on threats and blocked the ability of Palm Pre owners to synch their devices with Apple's iTunes software. And that's just fine.

Expectations that Apple should open up its software to let other devices use it are unreasonable. Yes, in a perfect world of perfect interoperability, all devices should play nice with each other. But we don't live in that world and most of the technology companies I know of don't either. So why should Apple?