Lets say you have an iPad and the place your gigging has a PA system with a Bluetooth front end. Obviously the iPad may not have enough storage space to keep all of the songs that you are capable of performing. But what if you used wi fi to expand you storage space on your ipad, things can get interesting. Kingston wi drive, Maxell Airstash, and Seagate satellite something drive all offer a way to expand your storage space. I think people can no longer use the lack of sd card slot to hold them back from getting iOS device. Has anyone thought about doing this?