This is nothing short of amazing! I just found this the other day and it is an answer to my prayers. it is like the lightest weight cms I have ever seen that actually lets you add cms features to any html/css web template of your choice by just adding a few lines of code. (Whizzy Placeholders). This will be great for allowing your clients to edit their own websites so they don't have to keep bugging you to do site updates. 
Check it out here!
http://www.unverse.net/Whizzy-CMS
Check it out here!
http://www.unverse.net/Whizzy-CMS
