Compatibility. This is all we’re really asking for when it comes to rhythm gaming on the Xbox 360, PlayStation 3 and Nintendo Wii. So far it seems Microsoft isn’t just on board, but enforcing compatibility between instruments from Rock Band 2, Guitar Hero: World Tour and Konami’s Rock Revolution. Sony has also confirmed this behavior on their blog.
What does this mean for gamers? It means we’ll be able to go out and buy the franchise of our choice and not feel we’re locked out of other rhythm games. You can choose the accessories that work best for you and enjoy all the games each developer provides.
This enforcement keeps the developers/publishers in check because they’re going to be highly competitive and looking for any advantage to lock the customer into their product, that’s just business. Having a moderator to say “play nice” is important for the console makers as it allows their customers to be happy and purchasing all this licensed great content. Microsoft and Sony will make more money if customers don’t feel they can only buy a single product.
It’s not about the accessories, it’s about the games. Accessories may make a game better so let the customer decide which will be better and may the best company win!
As for Nintendo? As long as their accessories always use Wii Remote controls everyone is fine, once they break this protocol they’ll have to build their own enforcement or start to lose the edge other console makers are sharpening.
(Thanks, GamerScoreBlog)
In an interesting interview this week at 1up.com, 
In an interview, Nintendo of America prez Reggie Fils-Aime stated: