BlankSlate has been updated to include a CSS reset so that it is now truly blank slate.
It has also been updated to be more of an HTML5 theme than before.
We actually have a very different concept than most theme companies. So if you’re intending on upgrading your websites to version 2.0 please be careful and read the following:
http://tidythemes.com/concept/
Checkout 2.0: http://tidythemes.com/blankslate/
Thanks, TidyThemes