I'm very surprised this came before the photoshop update, but I am happy and will likely pull the trigger on a rMBP in the next couple weeks now.
http://news.cnet.com/8301-1001_3-57507229-92/premiere-pro-supports-retina-displays-windows-8/
http://news.cnet.com/8301-1001_3-57507229-92/premiere-pro-supports-retina-displays-windows-8/