[aegiscg47]

The big difference here is that Japan had a naval tradition, so they were able to come to grips with carrier warfare pretty quickly. China has no experience in this area and stealing stuff will only get you so far. Building(or converting) a carrier, training an air wing and crews, plus surrounding the carrier with a task force is going to take them until 2015 at the earliest. It might not be until 2020 before it's ready for full fledged combat operations. I'm not saying it isn't a potential threat, but a lot can happen in between the concept and deployment phases.