I guess it shouldn't be a surprise that Stargate Universe was canceled, but it is disappointing. I was one of the people who really liked the first season and it was a lot of fun as it was slowly beginning to reveal the long term ideas of the show. In addition it was a spaceship based science fiction. These have a history of being very popular with a specific group of fans and being canceled.
While I am certainly not happy about this as I have really liked Stargate Universe I am interested in whether this may open up the possibility of science fiction with truly advanced technology, as apposed to shows like Fringe and Eureka which is our modern world with some liberties because there are generally not more than one of this type of show on TV at any one time.
The other point is that hopefully this will encourage Syfy to make more Stargate movies, whether they are based on the Stargate SG1 or one of the other versions of this show. After all the people who are making Stargate still have sets and a lot of talent and fans so might be able to get us more Rodney.
All the information I have is from IGN