Re: Xgl, I just watched the demo video. The only thing I saw there that adds to OS X's capabilities was the "rubber sheet" window movement, and for all I know OS X can do that too :).
I saw Apple demo the OpenGL-on-the-desktop capability at 10.2 release (July/August 2002), but oddly they never did anything with the capability. Everything else in the Xgl demo is already familiar to OS X users.
New HTML Parser: The long-awaited libxml2 based HTML parser code is live. It needs further work but already handles most markup better than the original parser.
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