Coreboot, formerly known as LinuxBIOS, is an open-source Linux-based BIOS implementation. AMD has long been a supporter of the Coreboot project with releasing code for Coreboot and supporting documentation in their products: both chipsets and servers.
From this blog post, it says "AMD is now committed to support coreboot for all future products on the roadmap starting next with support for the upcoming "Llano" APU. AMD has come to realize that coreboot is useful in a myriad of applications and markets, even beyond what was originally considered. Consequently, AMD plans to continue building its support of coreboot in both features and roadmap for the foreseeable future. Couple that with the efforts of such partners as Sage Electronics who has developed a sophisticated IDE system and engagements with leading RTOS partners in the industry, AMD is greatly enhancing its story in the deeply embedded market."
Hopefully in the not too distant future this will mean Coreboot becomes a viable BIOS alternative and perhaps we'll even see some hardware vendors shipping Coreboot-based products.