Even after the most recent updates there are still some apps without retina support. Adding NSHighResolutionCapable keys to the info.plist worked in some cases and just did nothing in others (e.g. worked for me in Premier Pro CS6, did not work in Audition CS6). Here's what to do:
I used Plist Editor Pro. We'll use Premier Pro as an example.
1. Right-click Adobe Premier Pro CS6.app -> Go into contents folder -> open info.plist in your favorite editor.
2. Add this to the bottom (right before </dict>):
<key>NSHighResolutionCapable</key>
<true/>
3. There is no need to copy anything (I suspect it's the copying that breaks stuff). Open a terminal window. Type the following: sudo touch /Applications/Adobe\ Premiere\ Pro\ CS6/Adobe\ Premiere\ Pro\ CS6.app
This is done simply by typing "sudo touch" and then dragging the app to the terminal window. Enter your user password when asked. Must be done with root.
4. Open your program. If it works, it works. If it doesn't, then it just won't. Period. The "sudo touch" command simply just modifies the access time and forces the OS to re-read the info.plist file.
Worked for me without any problems. Maybe this can help someone else?
(PS: I'm slow to check forums, so I may not get back to reading this for some time)