Try setting viewport cookie and redirecting based on that instead of <base>

[scottjehl]

Looks like Keith Clark came across a nice find this morning:
http://twitter.com/#!/keithclarkcouk/status/53730882565050368

This could really cut down our JS approach, as our htaccess could check for the cookie instead of the faux base directory, while still utilizing the data-attr based redirection already in place.