There are some plugins for wordpress and some carts that are compatible with bitcoin! But more user friendly apps are needed.
I think from a developer's perspective it's pretty well documented - I was more concerned about the user. The app I am building is an iOS app so I guess as long as folks are getting BTC wallets i.e Coinbase that are consumer friendly then maybe there's a way to integrate them into my UX.
I can always wait and add BTC integration at a later stage when it becomes more mainstream.