We build mobile tube sites for publishers, here are a few we have done
m.al4a.com
m.worldsex.com
pkmobi.com
We host the videos, update the site, manage the scripts and sell the banner ads on a PPC. We are about to introduce our premium mobile member upsell next week, which will add recurring monthly revenue to the PPC revenue.
If you're looking to test it out you can sign up here
http://www.gtsmobi.com/signup/
Thanks