Luckily, Sega has started translating the videos into English, with voice acting and everything, and we can now enjoy both looking at them and knowing what's going on. The voice acting is pretty much what you'd expect from American anime releases, but it's a small price to pay for comprehension. In this trailer, we see that a crash-landed "Watcher" gives protagonist Yuri the opportunity to build his own spaceship.
This trailer comes along with Sega's announcement of a spring 2010 release date in North America. We can only hope it continues releasing translated videos to tide us over.