To answer the question that was asked, if you use the current version of Shapeshifter, no, it will not work with Tiger properly, and your themes will basically be broken.

That said, I don't think Colin overstepped any of the bounds of etiquette or professionalism when he stated just what I said. Nowhere in this topic did he say something like, "Shapeshifter doesn't and won't work, but my upcoming project will do what Shapeshifter can do AND MORE!" If he produces more vaporware (if you can do such a thing...strange oxymoron), then feel free to rip into him in the appropriate topic. As it is, he didn't bring up any of his past (or future) projects, nor did he say anything that is untrue. At present, the version of Shapeshifter that has been released does not work with Tiger. That is a fact. If you think otherwise, then download Shapeshifter, find a nice torrent of Tiger (or become a developer), and try to use the two together. That's not to say that a future version will not work, but the current one does not. Colin didn't make any statements about future products, only that which is available to the public as of today. I see no problem with that at all.

Seriously, people. Grow up. He didn't cause you any harm, so leave him alone.