Topic: Borderless windowed mode?
I'm talking about a video setting here.. (I hate to say this bit but) eve has a windowed mode that is both full screen (as in it takes up the whole screen) and has no windows decorations.. I have seen other apps without window decorations so its apparently simple to do, and setting it 'full screen' is a simple matter of setting the window the same size as the screen and pinning it in the top left corner..
The advantage is obviously that you can run the game full screen and still use your 2nd monitor without the game minimizing.. Performance wise its the same as windowed mode (because that's what it is). You could even run 2 clients next to each other...
Shouldn't be too hard to code (again I have no actual idea as its not something I have even tried) and is a great little feature.