I am keen to buy the rMBP, but need to use Microsoft Office 2011 for work on this machine. I would like to know the usability of these apps given that these are not updated for the rMBP. If it is significantly worse than what one sees on normal displays, it will be difficult. I would love to buy this machine as it will render all other apps that are optimized well, but if the experience with Microsoft Office 2011 is horrible, it will make me think twice, especially as I use Outlook for several hours constantly for work email. Thanks!