They're going to have to add things to it each time, but by Mercs 10 surely there won't be anything left?

Even if new things are added, the games are likely to worsen with each sequel. I played the demo of Mercs 2 and thought it was too hectic for its own good.

This is a good attempt by Sony to try and grab themselves another 'innovation point' over Microsoft, but I'm not sure if this will work as well as the Wii Remote.

Still, the break-apart aspect is interesting, I'd like to see how that would work.

As jabobpbarker said, it's only the colours of the 12 and 18 that are similar. The PEGI symbols don't have 'PEGI' all over the background and BBFC use triangles for U and PG, whereas PEGI's proposed system uses a circles throughout.

This is just unnecessarily postponing a comprehensive game rating system that will stop people accusing them of influencing people.