What differences are expected of XHTML5 versus HTML5?

Question

What differences are expected of XHTML5 versus HTML5? I understand that XHTML5 is the XML form of the language and HTML5 is the SGML form of the language, which means obvio

Answer 1

http://wiki.whatwg.org/wiki/HTML_vs._XHTML is an attempt to document the differences between HTML5 and XHTML5. As far as I know it is the best available resource on this subject to date.