Like for the Mozilla 1.0 parties some time ago, I created a site to register Firefox 1.0 parties: http://www.openforce.at/mozparty2/ (site dead). It was a great success: The site was linked on mozilla.org, spreadfirefox.com and many online news-sites like Heise.de and ORF.at covered it. More than 8000 People registered in 380 parties – there even was a real (!) party planned on a research station on the South Pole).
Of course I organized a Release Party myself: Relase It (2). About 30 people showed up and we even printed T-Shirts – great fun ;) Of course there are photos.