I ended up getting it running using Wineskin Winery... The window keeps the menu bar at the top which slightly spoils the dark terminal magic, but I haven't tried playing with the video settings yet.
For Wineskin on Mac, you can make it true fullscreen without a Mac menu bar by opening up the wineskin app in the package contents (step 8 in c909's Wineskin directions), and do the following:
- Choose Set Screen Options
- In "Override Wine control of Screen Settings?" choose Override
- In "Override Setting" choose Fullscreen
- Leave the remaining options as is
You can then run cogmind fullscreen if it's options have fullscreen on.
Additional note for folks having problems with F1 and other function keys: make sure that in the Mac System Preferences you have in the Keyboard section "Use F1, F2, etc keys as standard function keys" selected.