Webshims Lib within asp.net MVC4 projects

Webshims Lib within asp.net MVC4 projects

MVC4 is using jQuery Validate and "unobtrusive validation". In that I'm facing several years of IE7&8 forms handling I've become convinced that Webshims Lib is the best way to bring HTML5 polyfill functionality. One of the comments at http://stackoverflow.com/questions/9067536/html5-forms-with-polyfills-is-it-worth-it suggests that the choice of Webshims Lib might change how MVC4's dataannotations are constructed.

> Most MVC devs are married to this because it [validation plugin and
> "unobtrusive validation"] makes their life so much easier when doing
> validation. I'll also be looking at the easiest way to marry the 2 by
> customizing the unobtrusive script.

Has anyone done any integration where Webshims Lib is bound more tightly to the MVC4 framework - whether  HTMLHelpers and/or annotation code specifically targeting **Webshims Lib**?

thx