What do you think of libcom's introduction to the state?

We have just published a draft of our new introductory guide on the state here:

http://libcom.org/library/state-introduction

as with our other introductory guides, we would like to gather users' views, so we can improve the article.

So what does everyone think? Have we covered the most important issues? Have we missed anything out? Is it clear? Is there any better further reading we can suggest?

Please give us your thoughts so we can incorporate them!