Thanks for posting this, it was fascinating! I had to implement a hex grid recently, so when I started reading through this page and seeing some of the same things I had thought about, I thought I wouldn't find much that was new. I couldn't have been more wrong!
That site helped me to write a Plasma dynamic background.
This helped me make my first hexagonal grid based game way back! Awesome site
Came here to post this, and saw that it's the very first comment... I am not disappointed, and instead very happy to be part of this knowledgeable community.