The Electric Sheep Company brings (well... brought a while ago) another big brand into Second Life. This time it's Sony BMG that's being immersed by the ESCapists. This time I'm impressed. The architecture is great and is slowly straying away from RL gravity rules.
The grand opening was October 19th, 2006 and featured a simulcast event with Ben Folds. Aside from the usual freebees (which in this case are about L$ 100) you can download music here as well.
The only problem with this sim is, is that it's called Media. It took me a while to find it. It certainly doesn't show right off that it's a Sony BMG thingy.