Currently Being ModeratedOct 17, 2013 10:03 AM (in response to schmooflip)
Get a Mac, install AirServer on it.
Go into System Preferences > (Hold cmd+option) Displays > Rotation > 90 degrees
Mirror to your Mac and AirServer should handle the screen rotation for you.
Currently Being ModeratedOct 20, 2013 7:14 PM (in response to schmooflip)
You might also want to check out an Apple TV.
Currently Being ModeratedJan 13, 2014 11:07 AM (in response to Big Apple fan)
I had wondered how to rotate the mirrored display for so long. Thank you so much for the fantastic tip.