Yes CryteK did.
Cryengine 2 has a lot more in stores than "just" outdoor stuff. I mostly work with interiors, the Alien interiors more specifically and there are some pretty cool things you can do. For everyone who ever wanted to build caves/organic interiors, the voxel technology makes that really easy for you.
As far as lighting is concerned, the ambient maps really do wonders and make interiors (like the aircraft carrier or factories) look much more believable.
I love the light beams that don't only cast a projected texture, but they are also affected by objects that cast shadows, so you can see the shaft being blotted out or split.