There are already is such a gathering in a matter of speaking ...

Seattle Hempfest - huge festival of tens of thousands of people ... very relaxed atmosphere and much to see and do :stoned:

http://www.hempfest.org/

I was there last year and plan to attend again this year - Marihemp Network is a major sponsor of the event.

Some pics of last years fest that I took ...
http://gallery.marihemp.com/hempfest2005

The http://www.hempfest.org/ site has even more pics on-line to view.

With that said, a Marihemp / Cannabis.com gathering for people here could be cool, but the logistics could be challenging - money, travel, security (big issue for international travel in or out of U.S.), etc ... but it's certainly an idea that may work if enough folks are able to put it together ... in the meantime, the Seattle Hempfest (there are some other gatherings too that happen each year, but am not as familiar with them) is the next best thing... check it out

http://www.hempfest.org/

Ron