If you had any doubt left that 2010 was the year that mash-ups went mainstream, take a quick peek at the latest set of bits posted to promote Tron:Legacy.

The first item on the list is titled "DJ Breakdown" and it's a fan-created audio/video remix of Daft Punk's (themselves master remixers) soundtrack tune "Derezzed".

The war over ownership has moved to a new stage - creation becomes not just product but source material. In 2011 you will see more companies moving to co-opt, own, and control the remixers and the remix processes - even the Cartel will have to get involved. You'll continue to see ridiculous takedown notices and attempts to limit what people can do and see and hear. But these are rear-guard actions. The remix, the mash-up, are here to stay. Now the battle moves to who gets to make these on whose terms and what control is laid over the result.