If they really wanted trusted computing,
by schwim on Jul.31, 2008, under Software
they might have considered reversing the roles concerning which OS is not allowed to be installed on the drive.
Microsoft has announced that Vista’s SP1 will fail on install if you’re dual-booting, thanks to “Trusted Computing”‘s chain of trust being broken.
If you scoff at TC, I can vouch that the system works well. For instance, Microsoft broke my “chain of trust” a few years ago causing me to not allow it to install on my computer. No problems since.