I've never tried this so I'd like some help before committing.
I have a client who wants the Mega controller to be accessed wirelessly and not by USB cable. Is it as simple as getting a wireless adapter / dongle and plugging it into the Mega's USB type B port? How will the Arduino IDE know that is it is connected on another port. How will the Mac know it's on its network? I'm a PC guy so don't know much about configuring a Mac.
I contemplated the WIFI shield but I've used up almost every pin on the Mega.
Also, most USB wireless adapters have a Type A plug. How do I convert that to a Type B to insert into the Mega?