Hopefully Apple will not muscle its way into the cryptocurrency arena. Who can fight Apple

They arn't. This isn't a true cryptocurrency, just a fancier version of AmazonCoin which is also not a crypto-currency either. They are just proprietary payment systems riding on the veneer of Bitcoin, which is both bogus and sad.
The fact that Apple is both creating their own "currency" and denying Bitcoin apps is pretty telling that they just can't stand any format they don't have an iron grip on just like Sony.