Hi guys, longtime user here. Developing a new site on RC3.
I'm using $routing[ 'directory' ] = 'storefront'; in my index.php.
My default controller is simply 'boston'.
In Router.php, when _set_default_controller() is called from _set_routing(), it attempts to set the boston controller as the default but finds it doesn't exist. The reason being the directory is not being set in the constructor until after _set_routing() is called, resulting in $this->directory() on line 304 not returning anything.
I'll do my own little override for now with a fix, I just wanted to bring it to your attention. Keep up the great work!