Due to the nature of my game, it's a major roadblock. I'd really rather not make sacrifices for a Windows build to avoid this one issue. Any solutions yet?
Edit: Also, the numpad is supposed to be the equivalent to arrow keys and page up, page down, home, and end when numlock is off. However, while this works in flash, it still reports the same erroneous key codes in Windows. So, I'm still seeing no way of separating the numpad from alphabet keys.