[LinuxBIOS] LinuxBIOS vs. FreeBIOS vs. OpenBIOS?

[Uwe Hermann]

Hi,

I'm currently reading all available documentation to get into LinuxBIOS.
But I'm wondering how it's related with the other projects such as
OpenBIOS and FreeBIOS.

OpenBIOS is not a "competitor" in the strict sense, it's a layer above
LinuxBIOS as I understand it, and can be used as payload for LinuxBIOS,
right?

FreeBIOS seems pretty dead (last update 2003?). Was it an alternative
project which is now unmaintained, was it the same as LinuxBIOS (name
change), or have both projects merged?

TIA, Uwe.