Here is Xcompmrg running on Mer 0.11 testing version.

First i put on only the basic fade-effect, then shadows and oter stuff.

With all the effects, it's laggy. That's because there's no Hardware Acceleration at all.

http://www.youtube.com/watch?v=8UtcGhei3cA

At the same time, the video is also a good preview of the new User Interface of 0.11 and my theme