Hi there
I've noticed that this logo:
http://docs.joomla.org/How_to_Organize_a_Joomla!Day#Logo_usageuses TM instead of ® on it, and AFAIK (correct me if I'm wrong) it should be using ® after the word Joomla!. There's enough confussion at the moment with our TM policies, so let's try not to confuse users even more giving them contradictory material :).
Please upload a new corrected one asap, or if you won't have time, send me the source .psd or .xfc (or whatever) image file and I'll find someone to do it and send it back to the person in charge of maintaining that page. Or even, if you prefer, I can update the wiki page myself, in case I have writting access rights as a regular wiki user. I don't mind who does it, as long as we get it done ;).
Thanks!