Sure 1080p video and various iterations of surround sound audio are nice, but we've been waiting to see more interactive BD-J and HDi (or is it Advanced Navigation?) features on next gen discs, and Universal is bringing just that with their next two high profile releases. Children of Men hits first on March 27th and will let viewers watch the video billboard ads shown in the film, in their entirety, rather than just the short clips visible in the movie. Smokin' Aces follows on April 17th and features a Google Earth tie-in to show the location of each assassin during the film. VideoBusiness got the heads up from Microsoft's director of HD DVD evangelism, who also noted we expect to see three HD DVD titles featuring internet connectivity this year and that these movies "just scratch the surface". The HD DVD camp will need to do a few things Blu-ray isn't in order to keep pace in the format war, we'll see if extra features prove to be a difference between the two.