I am in a WordPress plugin best practices developer track seminar. Probably means I am the slowest person on the room. It is great! Now I can learn. Please bear with me if this is a cursory overview. I will update all of the posts I make on Monday when I have a chance to fully absorb this. Dan Pastori from 521 Dimensions.
Here are some WordPress plugin best practices ideas to get started. Objects versus procedural is a big part of this. I am repeating the presenter to sound smart. Some of these posts will be edited on Monday when I have a chance to wiki it.
The big lesson is not mess with the core that WP creates. Make sure to document everything, so people can understand it. Be the server admin friend and make it easy to use. The best way to know you did everything correctly is to have your mom check your plugin, because others will see the mistakes.
Hope this helps you with the WordPress plugin best practices.