Has anyone played about with it yet? I did this the video below in 2 minutes . I'll keep playing about with it but it seems a good tool if you want to get some clips together, really quickly.
It has a very limited mixture of themes and songs to choose from (I know you can add your own songs via USB).
Where I could see how useful it would be is if someone wanted to do a commentary, adding commentary to a saved gameplay is easy.