Thanks, just doing my part. Yeah I build lists for sure. I'll throw this one out there as well. What I do is make a nice mobile lander, and promote an offer that has an email submit box, but just above it I insert my own email capture field and beside this say confirm email.
I hook it to some code so when they click the submit button, I get paid for the CPA AND I capture their email address.
The second way to monetize with mobile traffic is run a report and see which handsets have converted for you and build a second ad campaign targeting those devices that gave you a decent epc.