The proposal is available at http://meta.wikimedia.org/wiki/Membership_fees.
This proposal was set based on discussions with many editors, on meta, on irc, by email. Though it is probably not perfect, I believe it is a fair proposal trying to take into consideration all comments made.
I tried at the same time to propose something
* which keeps in mind that membership is meant to collect money. It is important because it is the safest and strongest and least controversial method of financing
* which is fairly simple
* which takes into account the existing community and recognition of its diversity (allowing to join less wealthy good contributors for a rather low amount)
* which allow people to indicate what they would prefer the money to be used for
* which will set relationships between local chapter and foundation.
I would like to remind editors that whether they give money or not, they are members of the Foundation. Contributing to articles, organisation, software, maintenance etc... is a great way to help. Giving money is another. If people can do both, fine. But you will still be important to us if you do not give money. Only provide what you feel like providing, time/energy or money, only time/energy, only money. You will be welcome in any cases.
I'll add to this, that members joining local chapters, will be contributing members to the foundation as well, provided that there is an agreement between the local chapter and the Foundation. Next step is to see how we can legally and technically do this :-) I have a proposal, which I shall explain tomorrow to current and future chapters.
For now, I would like you to read this membership fee proposal, and explain it to non english people please, as all languages will be concerned. I tried to be rather descriptive, to avoid misunderstandings. But I guess the proposal might be summarized in just a few lines.
Thanks for your attention :-)
Florence