There is no need for any organization to own IP as long as you plan on making it all freely available. All you need to do is properly license it. Copyrights are easy and there are plenty of existing options for you to consider. You can start with Creative Commons Attribution 3.0 Unported. This also applies to your logo.
You only need to deal with trademarks if you intent of enforcing something. For example, if you plan to certify implementations and allow them to use the logo, you need to deal with trademarks. Otherwise, if there is no enforcement, there is little value to complicate your life with trademarks. Just make sure that the name and logo you pick are not already used.
As for patent rights, you can start with the OAuth license until we have the OWF license ready. But you don't need a foundation for that. Just make sure everything going into the spec is licensed.
> If there's a need to put money into the specification (say,
> sponsorship for meetings or hosting or other costs), it'd be great to
> use the OWF for collecting those funds.
It is much better for you to get funds directly into event costs, so instead of a company donating money to a foundation and the foundation paying for hosting an event, just have the company pay for event costs. We did OAuth with ZERO cash flow.
> And, most of all, I'd hope for some advice and guidance in all the
> work it takes to make an open standard, from people with experience:
> organizing the spec itself (text-wise, protocol-wise), coordinating
> community effort, and explaining our work to the public.
It will take a while before the OWF can help you with "mentoring services". For now, just try to find experienced spec authors, editors, implementers, and community builders who are interested in your work.
EHL