From my experience, there are many mobile ad networks. There is almost no good ad inventory to run on them at volume.

Convincing ad planners to move to mobile a tough challenge. Ditto a move to native advertising. Both at the same time? Good luck. But if it can be done, sign me up!

Mobile advertising is getting pretty competitive - MoPub's reports offer pretty solid evidence: http://www.mopub.com/2013/10/07/mopub-quarterly-advertising-...

Advertisers are somewhat familiar with this format because it's so similar to Facebook's format.