Cool! He uses a different name and there's other weird stuff going on. "God Loves You as He Loves Jacob" is flashed briefly on the screen as well as an upside-down person on a bicycle.
By the way, there's a transcript of the Q&A that the producers had at ComicCon here:
http://www.lostpedia.com/wiki/Official_Lost_Podcast_transcript/August_2%2C_2007
Some good info there, esp since they were mostly silent since the S3 finale.
I found that trailer pretty revealing. The rabbit experiment seems to hint that the island possesses a time travel component that might shed light on some unresolved plot lines such as the flash-forward, the man who never ages, Locke's recovery from paralysis, etc. I can't believe we have to wait until Feb. for the new season to start.