Vince, thanks for the feedback. With regard to the Shuluri...player-known races had to pass two tests: 1) they had to be global, that is they had to appear on more than 3 or more continents, and 2) they had to be known to their neighbors. Shuluri maintain a secretive way of life and do not generally make their presence known to outsiders.
Concerning the other stuff:
While it's good to hear back about what people liked, it's great, and helpful, to hear this stuff - what info you think should have been included and what material was included that you think should not be. As you can imagine there were some difficult decisions to be made about what exactly should be considered 'player' info, especially since every GM may have different opinions on the subject!
Thanks for the feedback, keep it coming!