I can’t wait to see how this one pans out:
@mattcutts, is it true you said invalid markup has no influence on SEO with Google?
Edward Lewis on Twitter to that guy :P
Update: http://twitter.com/mattcutts/statuses/9994544671
@pageoneresults I believe I made an SEO video about that; if a page has high quality we would like to return it despite errors.
There are quite a few more comments to read on Edward Lewis’s twitter about the W3C valid code and how Matt Cutts hints of it’s lack of influence within the sphere of Google search and SEO.