Argyle King
Legend
Which was actually a really great thing to do. They knew some people would be sticking with 3.5 for a long time and they gave them a "going away present."
For some people, it likely was. I bought the book.
I never really used it though. A year later, 4E came out and was different enough that there wasn't really a way to still use the material.
For my friends who did stick with 3rd, they had switched over to Pathfinder. While PF wasn't officially released until 2009, playtest documents were available before that.
I'm not upset that I bought the book. But, with hindsight, my choice likely would have been different.