Pyr is a new science fiction and fantasy imprint of Prometheus Books. Lou Anders, formerly of Argosy Magazine, is the Editorial Director. I think it’s pretty safe to say he’ll do a good job given the proper support. (If you haven’t read Argosy, check it out!)
Although they haven’t updated their website to reflect it, they have announced their starting lineup. I received a mailing from them yesterday and I’ve added all the details to our web site. Check them out.