Guestmob is a new webapp that uses their algoritms to carefully curate relationships with hotels in its market to help you save a good deal of money when you book your next vacation.
The only catch is, you have to be willing to give up some control about where you stay to get the best price. Its now available in 20 major US markets, New York, Washington DC, Dallas, Los Angeles, Seattle and more. Each city is broken up into regions, and you can select your destination and dates of your visit. You'll be able to see average room prices for each location as well.
Too bad its not available world wide otherwise this would be a useful tool for the traveler elsewhere. Have you used Guestmob before? What do you think about it?