I have long wanted to build an engine that let's you book a vacation on points. You connect all the points programs you have and it shows you how to leverage th

I have long wanted to build an engine that let's you book a vacation on points. You connect all the points programs you have and it shows you how to leverage them to get the best deals on flights and hotels. The trick here is that you can transfer points from credit cards to some airlines and hotels, and sometimes the points are worth more when transferred. But, integrating with all these systems is the problem, and it's a big problem. Especially since there is no way any of the players want this to happen. Maybe it could be built as a browser plugin?