History section's phrasing is controversial. Let's see if we can get this sorted out.
Patrick Georgi has been working on GRUB2 for coreboot during the Google Summer of Code 2007. He made an original code submission on August 20th 2007. If you care, there is documentation on how to use it, but that work is based on a very old version of GRUB2.
For various reasons, Robert Millan of the GRUB project did another original implementation, which got merged, so we moved our effort to their new code base and continued from there.