Researching this a bit further, I gather the Dongles require a computer that can run much of the software (the protocol is implemented in the driver) So you can get a driver for a computer like a PC, Mac or a Raspberry Pi (which is Linux based), but not for an Arduino. One might be able to build a WiFi shield with an embedded Arduino processor, but it would be difficult to manage the protocols and do other stuff.
I\'m just a newbie. If anyone knows more, please elaborate.