Classic 'push this button to make more money' app, with a nice path to acquisition baked in.
Someone with an afternoon free should really step on this. Just make sure it doesn't end up starting price wars with itself!
Call it Autopilot, or something.
I've previously thought about writing a little program that keeps an eye on the major hotels in the city, so I can work out when rooms are more in demand and amend my pricing.
Even a "this is the average cost of similar rentals within a X radius of you" would be helpful.
It would be beneficial to AirBnB too. They'd get more money in fees and money flowing through their system. It also works both ways - if I reduce pricing in low demand times, it's possible I'd get bookings I wouldn't have before - again increasing the amount for AirBnB.