The competition is over and we have a winner!
Thank you all for your participation!
dec won, and as he ask me to donate the Bitcoin to this forum I just did it. Here's the transaction id:
We will now ask Facebook if they accept the logo (because of the f in it).
If they don't agree, I will go for the second place. Another very nice logo that somehow also won when we take it as a member of the logo-class that was submitted by its author.
The complete final standings with all the actual vote-numbers for each logo can be found at bitcoin-app.com