An empty plugin template to start with, including the most basic necessary stuff. Take this as some kind of workshop.
STILL BETA Use this emtpy wordpress plugin template to build your own.
Considering all the advices given in http://codex.wordpress.org/Writing_a_Plugin, http://codex.wordpress.org/Creating_Options_Pages and http://planetozh.com/blog/2009/09/top-10-most-common-coding-mistakes-in-wordpress-plugins/
Every important point will have it's own page to explain.