There's an interview of SiS available at Xabregamers. We learn some very interesting stuff, like the Xabre II supporting anisotropic filtering (!), Displacement mapping (!!), nPatch (!!!, It's Truform tech) and that "The target of XabreII is to be the top performer at the time of its release." Here's a snippet:

With the SiS Xabre II GPU to be launched very soon and the impressive specs announced, there has been lots of speculation around the Xabre II. Fortunately, we've had the opportunity to ask some questions to SiS in order to shed some light for us on the upcoming Xabre II GPU. We also asked SiS about their chipsets.

Interview: Xabregamers