Do you think that PlayStore for android phones should accept Bitcoin as a payment or AppStore for Iphone? Steam has no problem with Bitcoins, so why shouldn't PlayStore and AppStore use it? It can use BitPay like Steam and most sites that sell something online.
It would be great, but do you think it will happen?
That is a good proposition. But google is skeptical about using a decentralized currency like bitcoin as of now.
Also the fluctuation in bitcoin price is also a matter of concern. So a proper price bench marking needs to be done before bitcoin is accepted in app store.
Another issue is that, you can't buy anything immediately with bitcoin payment as it takes time to get confirmed. So you will have to wait after making the payment until it gets confirmed. These are few road blocks.