I'm going to be the kill joy here.... Everyone quit holding hands and singing open source kumbaya...
Who cares.. release something... don't release something.. "open source" .. "open hardware" .. it's all just buzz words like "Cooperative synergy". There is no new "open hardware community" movement pushed forward because of a gear logo and some club guidelines. More buzz words. It's the same nerds that have always been here doing the same thing they have always been doing. Go make your breakout boards and release them to the world and be happy, logo or not.
Dave is on the right track with the corporate ideas regarding releasing stuff. Get off their back and be grateful you get anything, logo or not. Anyone that expects a company to always give away all their stuff has never spent their own money developing an actual product. R and D is an expensive investment. Tektronix and a bunch of other equipment manufacturers didn't make a big stink about releasing essentially full documentation for their stuff back in the day. They didn't need to make a "look what I did" logo and spew about it. They did it because it added value to their products and it would get them more sales. If you have a product and you think it would add value to release some aspects of the design then do it and move on. You don't need anyone to dictate what you need to do or how you need to do it. There doesn't need to be rules. You don't need to join a club, especially when the club is an arbitrary formless cloud of internet opinion that can and will change their minds at will.
And don't be shocked if you give away your work and someone uses it to make a profit, pirated logo and all. You had your chance to make money from your ideas, and you should have talked with a real lawyer before assuming that some guys on the internet knew what they were doing when they made their club license.
The only way any of this "open hardware" gear logo stuff adds any value at all is exactly what Dave described with an official, legally binding, fully defined (and not hopefully not asinine), set of rules and regulations with the most important part of it being the ability to actually follow through with the legal defense if there is a violation and enforce it in court. Without that it's worthless and all the time spent complaining on the internet about improper use of a logo could have been used actually making something useful, starting a company, and making some money.... or give your stuff away... it's up to you.
The act of sharing your work with others is awesome. I fully support that as an end in itself. Sticking on a logo, or having unenforceable rules, or cooperative synergy adds no extra value.
end rant. Commence the open source kumbaya...