GameHead (Spike TV's decent gaming show which airs at 1:00AM in the morning) did a feature piece on 42 Entertainment (the ARG people behind ILoveBees and Vanishing Point). While they covered some of the good stuff about how the previous ARG's were launched they hint that they could be working on a new ARG for
Halo 3 and that clues may be buried within the show itself. If you missed the airing of the show you can watch the full thing
online at GameTrailers.
After watching the show I do wonder about some of the pictures in the background during the interview as the placement of the people on screen seems a bit fixed.