Will Digitalbits enter the travel industry at some point? If it did, would projects like Winding Tree be partners or potential competitors? 
Travel programmes are one of the biggest types of loyalty programmes so it makes sense that these will be targeted for partnerships by Digitalbits. Moving on chain can result in huge savings so it makes sense that massive airline companies that are constantly looking for margin will be one of the first that will try to innovate their programmes.
Airline companies would be the obvious candidate for first partnership. Unless it's a huge chain supermarket, or some pre-existing loyalty point collective. Not sure if that exists though.
Someone was speculating about a north american points cooperative that would have been the perfect candidate. I'll try to find the post later.