There are probably partners who have significant reach, and would be interested in a revenue share with your platform, or maybe a white-labeling solution. HumbleBundle, or something along those lines comes to mind.
That's a good idea, I think partnerships are definitely the way to go, especially with content producers like HB. White-labeling is also very interesting, we know of a few really good examples of that in the mobile market. Probably something more towards the future though, right now we're focused on getting content!
Correct me if I'm wrong, but HB includes a lib of 50+ indie games with the Humble Choice subscription. Why should they split revenue with you as a competitor?