Hi Florian, Nice idea for a presentation. Is the guitar module you mention on your presentation page published somewhere? I couldn't find it on drupal.org and have never heard of it so far.
I'm making a proposal for a presentation in the track "birds of a feather" at DrupalCon, with the title "Drupal for Fun". It will be a showcase of fun modules that serve unusual purposes. In addition to being entertaining, they also help us explore beyond what Drupal was (or wasn't) meant to do. To give you an example, an idea I recently implemented is an API for jquery games allowing you to play with other users online, and a TicTacToe module using that API.
If you will be at DrupalCon and you are interested in entertaining some people by giving a quick presentation about what your module does and how it works, send me an e-mail (not on the development mailing list) and I'll add your name and your module to the presentation proposal.
http://boston2008.drupalcon.org/session/drupal-fun
Thank you,
Florian
-- Ramiro Gómez Software developer with focus on content management systems, SEO, and open source. Websites: www.ramiro.org www.seo-expert-blog.com www.torlaune.de