Frequently I need to know which ip address I have - also for the MAC address. Is there a possibility to have this information everywhere? My suggestion would be the system tray - but I do not want to overload it. What do you think?
I agree with the status bar positioning; that would be a good fit, in my opinion. However, I think they should ALSO be placed in the system tray, because I (like API) also need to access those two addresses frequently. And really, having the MAC and IP addresses in there really won't add much extra "bloat" to the tray dialog, so I feel that it couldn't harm anything to have it in both places.
But if I had to choose one, well... I'd probably choose the tray dialog, just because it's easier to access.