I believe the only thing keeping GRUB 2 masked is a lack of "documentation". By this, I assume people are referring to the handbook.
I have created a very minimal "quick start" guide that could be adapted for the handbook. It relies on the grub2-mkconfig command auto-detecting most things, which actually works pretty well. http://wiki.gentoo.org/wiki/GRUB2_Quick_Start scarabeus created a guide a while back that goes into slightly more detail: http://dev.gentoo.org/~scarabeus/grub-2-guide.xml The wiki also has a longer GRUB2 guide. This goes into some of the more exotic setups. However, some of it is poorly written and I find editing it quite tedious. http://wiki.gentoo.org/wiki/GRUB2 So, my question to the community: what level of documentation do we want to put in the handbook? If the intent is just to get people up and running on Gentoo, I think adapting the quick start guide from the wiki is enough. grub2.info has a very detailed reference; I think we can refer people to that for manual/advanced configuration. Is there any other issue with grub:2 that would keep me from unmasking (adding keywords) on x86 and amd64? I plan on waiting for the 2.00 release.