Cycles has an awesome new feature: a true SSS shader! Download the latest development build from: http://builder.blender.org/download (warning: builds are not stable). As of now, SSS doesn’t support CUDA(thank you Stephen Bates in the comments below!).
Have a question about Blender? Get help on Blender Stack Exchange: http://blender.stackexchange.com
Follow the official Spastic Kangaroo twitter account: @spastickangaroo
Follow Charles on Twitter: @Chuckie_S