Hi, awesome theme - congrats!
Running some performance test (via webpagetest.org) on a site running the twenty-twelve theme, after watching http://wordpress.tv/2012/10/04/jeff-waugh-turbopress-the-high-performance-guide-to-wordpress/ (greeeeat video!)
I notice on http://codex.wordpress.org/Function_Reference/bloginfo that we should all be changing from bloginfo('wpurl') to the new home_url('/').
However, could I ask that the logo/sitename on the theme is NOT having trailing slash please. so using home_url() instead of home_url('/') in header.php
I know its a minor tweak :)