They must be showing off a bunch of the technology SK claims to have written in spite of UE3.0. Is there an SK presentation ?
hm... [strike]I believe there was also mention of the camera system in a recent article on the Epic- SK battle, something about filing a patent? [/strike] They might show that.
edit:
http://www.gamasutra.com/php-bin/news_index.php?story=17121
And of course, as a part of the patent process, full disclosure of the technology is expected (not necessarily the code per se, but the workings). But if they're only just preparing the patent application, it would be in their interest not to disclose anything public yet.