Personally, just from looking at the flight tests and demonstrations... I think there's absolutely some areas that can see some quite rapid development and improvement. It's like looking at the first Segways, and how different today's models are from the first demonstration devices.
I could easily see pairing with some of the capacitor battery designs that are out there, as well as semi antonymous GPS piloting software, and you could pretty much type in the map coordinates, verify via imaging from Google or Microsoft that the target location is indeed where you want to go, and have the device fly you from your carport to 30 ft over your target, and all you have to do is land.
...yeah but they throw in a portable body bag with self addressed FEX EX mailing strip attached.