graeme_p - 2:27 pm on Feb 28, 2013 (gmt 0)
The whole point of secure boot is to:
1) make it harder to install other OSes on Windows PCs.
2) prevent dual booting.
3) reduce life cycles to people buy new PCs sooner.
First two benefits to MS, last to PC vendors. Notice how conveniently it came out just as life cycles are lengthening? MS needs the other two because regulators are now wise to the tactics they used to kill BeOS and limit Linux.
Its a barrier to entry.
Vendors want control. Its not just MS and PC makers either. Google Chrome books would make great Linux laptops (Pixel! I want!), but it has a secure boot like system as well.