[Rydberg, Johan] The UEFI FAQ states the following: Q:Is there a charge to use the specification? A:Not for the specification itself. The Promoters of UEFI have agreed that any IP needed to implement the specification will be made available on reasonable and non-discriminatory terms. Q:Can anyone build their own Unified EFI implementations? A:Yes. UEFI expect BIOS vendors, OS vendors and add-in card vendors to all implement products based on the Unified EFI Specification. But when you decide to download the specification, you have to agree to become an adopting member of the forum to implement the specification. I think that gives double messages. [Doran, Mark] Well, I'm sorry you feel that's an inhibiter. I know when we talked about the language there the hope was to make it clear that the Forum wants to encourage adoption and diversity of implementations. That you took the complete opposite of that intent from what was written is definitely not a good thing :( Adoption membership gives you a license to the spec. The form of that license is intended to help make it possible for anyone to implement while ensuring that any one implementer can't go after all the other implementers if they have some IP that the reads on the spec and that the Forum was not aware of when the spec was written down. In other words, the agreement is meant to help protect the ability of any and all Adopters to implement the spec without concern that IP claims may come along from who-knows-where after they do their work. The intent was to have this be a benefit to Adopters as a collection not to make people think twice about becoming an Adopter. One specific note. Again, like PCI the license terms for UEFI Specification are "reasonable and non-discriminatory". That means in theory there could be some royalty for IP that's incorporated as part of the spec in order to implement it. Personally I'm on record as preferring some form of royalty free terms but part of the compromise to get the commercial industry backing that UEFI Forum now has was to use PCI-like licensing terms. A trade-off clearly. However, two important things to note about that: 1) there is *NO* IP that reads on the spec of which the member companies are aware so the issue is essentially moot as a result; and 2) even if there were IP the members have agreed that it's in no one's interest to make barriers to adoption any higher than they have to be and a royalty would certainly be such a barrier so I would not expect to see royalties become an issue any time soon if ever...doing that would sort of defeat a major purpose of the spec by making it harder for the industry to move to it.