Prestashop 1.6 variables
While making some modifications to a footer today I found a very handy list of variables for prestashop 1.6
http://doc.prestashop.com/display/PS14/Creating+a+PrestaShop+module
In the "Using Smarty" section of the documentation you can find a list of variables accessible to developers in all of prestashop templates, It's a really handy cheatsheet to have.
Hope it comes in handy!