As I suspect may be the case for many MacBook users, I am regularly switching between ethernet and airport, when I'm at my desk / roaming, or when I go from home to work. It would be nice to not have to manually change between en0 and en1, and then reboot, when this happens. Back when using VirtualPC on my PowerBook, it would automatically detect which network interface was active, and route traffic from the virtual machine through the appropriate interface. It would be awesome if Parallels could do the same thing!
