Vista x64 and driver signing

I used Vista x64 bit just about  three weeks.(back to XP now)
I was actually quite suprised how well it worked but I just could't get over
the driver signing requirement. I think it really sucks how Microsoft tryes
to manipulate what programs I can use in MY!!! computer. -I wonder if the
driver signing requirement is even legal.
Does Microsoft get money this way?

And if someone is thinking to reply and telling how the signature test
protects me from terrifying malware and rootkits. Please don't.
I now something about this subject and quick answer is that it dosen't.
(Vbootkit,Atsiv).

By the way here what Linchpin Labs thinks about  being malware maker:
http://www.linchpinlabs.com/resources/atsiv/usage-design.htm

Actally I'm currently making offical complain about this integrity check to

Actally I am currently making  offical complain about this integrity check to
EU. Basicly I am trying to find out if is legal or not to force Vista users to
use only signed software.