[p_l]

Coreboot is NOT an UEFI alternative. Unless you want to regress computing to closed platforms (it can be open source and closed platform).

[floatboth]

Coreboot is what you can run before an UEFI implementation, they aren't mutually exclusive.

[p_l]

My wish is a good open source UEFI implementation running on top of tight coreboot setup, that goes all out on the security features.