Yes... Linux support...
IBM, in particular, has been working through support for trusted Linux. And as the referenced article points out, Linux kernel code now supports trusted computing.
As I have on occasions tried to point out--IF the Linux crowd (which is varied and variable) could just see past the smoke and mirrors offered by the anti-trusted computing mafia, they MIGHT see a way for Linux to GAIN traction vs. Microsoft in the enterprise. In many ways, the LONGer the wait for Longhorn, the greater the opportunity for Linux.
Best Regards,
c m