Spartan isn't a subset of IE either. We've added support for nearly 50 standards, and more. The delta between IE and Spartan is massive, and growing quickly.
Interesting, if it's a complete fork does that mean IE is not going to be maintained? I thought IE was going to continue on for the time being. If there isn't a common codebase does that mean you're going to be duplicating work? Why?
Internet Explorer will stick around for legacy applications, but Project Spartan uses EdgeHTML (a fork of MSHTML) and is meant to be used with the web moving forward.
