Without having to hack and/or expose I/O pins, anything with a USB port that can run the open source code can be given wireless communication capabilities with a very common and cheap chip

With the tradeoff of being incredibly disruptive to the RF spectrum (and therefore strongly ill-advised for use in a product)

It doesn't really matter that much in any practical sense; it's just kind of cool.

Hacking an object designed for A, to do B.

See: MacGyver