Hi Bridger,
Thanks for the suggestion. I can add something like that if need be, but like with most any other game you can easily just alt+tab out or hit the windows key. Do you think a minimize button is really needed in addition to those two?
As a side note, generally speaking the game should be able to auto-detect games over Hamachi just like on a LAN. For some configurations that seems not to work right (might be Vista firewall, not sure), but in general that can make it easier than having to look up your IP. Hamachi is really great for when you don't want to mess with your router (or can't).
Let me know what you think about the minimize key, if it's important I'll add it for you.