Since writing the above, I have just discovered the wonderful world of [Bitcoins][1].
The Bitcoin system relies on being able to trace the history of a coin to make sure it's not bifurcating in it's history. There's also anonymity which comes from the fact that there's no identity attached to your purchase with with, or donation of Bitcoins, at of, Bitcoins (at least not byu by correlating purchases together. together).
Theoretically, there's systems in place to help obfuscate such connections between income and purchases, but I believe it'd it would still be possible to trace the history of coins through "some entity". Likewise, there'd be no way for him/her to transfer said coins into another wallet without a transaction, which is, effectively, public record.
Think of it as people who know that a transaction happened between two addresses, but they don't know who those people are or what the purchase was for.
At least, this is my understanding of the system.
My thought is then, of course, could course. Could Bitcoin represent the glue that will stick this Open Funding Foundation idea together?
[1]: http://www.weusecoins.com/