Peter Wong has been working on a proof of concept project for the past several years which would allow the Apple II to utilize wireless communications. The project has a number of ideas included and even a version of ADTPro, the disk imaging software managed by David Schmidt with the Bluetooth option on the main menu.
While there have been several projects which proved the concept would work, this is the first views which show the full integration of the software and hardware performing actual disk transfers. This project also uses the Bolutek BLK-MD-BC04-B module attached to the Super Serial Card to achieve the bluetooth communications.
To read further about this project, check out his blog posting at: