I say "should" because this is the first release. As Bottomley himself wrote, "Let me know how this goes because I’m very interested to gather feedback about what works and what doesn’t work. In particular, there’s a worry that the security protocol override might not work on some platforms, so I particularly want to know if it doesn’t work for you."
Bottomley has also "put together a mini-USB image that is bootable (just did it on to any USB key; the image is gpt partitioned, so use the whole disk device). It has an EFI shell where the kernel should be and uses gummiboot [a simple UEFI boot manger] to load" a Linux distribution.
If you couldn't follow those instructions, don't even try using this method yet. As Pēteris Krišjānis, an Ubuntu Linux tester, wrote on Bottomley's blog, "These instructions are for advanced users only. Users who want to install Linux distro on UEFI/Secure Boot computer will have to wait for distribution releases in April/May (Fedora/Ubuntu and related distros)." Krišjānis is right. Ordinary users should stay well away from this solution for now. It's really meant more for distribution developers. Their job will be to turn these esoteric instructions into something that requires little more than a user hitting an "OK" button.
In short, by May, it should be easy to boot and install the most popular Linux distributions on Windows 8 PCs. Today, we're still not there, but the developers now have the tools they need to get us there.
Others object to the Linux Foundation's attempt to work with Microsoft to get around Secure Boot's restrictions. One accused Bottomley of folding "to Microsoft UEFI and microsofts monopolistic decision to have OEMs use UEFI whether a consumer wants this or not under the guise of security when in fact its an effort to maintain control on MS part." Others used far harsher terms.
Unfortunately, these people are ignoring the simple fact that the vast majority of new PCs are being sold with Windows 8. This, in turn, means they're locked into that Windows 8 with UEFI Secure Boot Short of cracking UEFI security, something no one really wants to do in Linux development circles; the only viable choice has been to work within Secure Boot to get Linux to work. It's what Fedora, Ubuntu, openSUSE, and now the Linux Foundation, has chosen to do.