I am looking to buy targted mobile traffic in our niche to get sales for our product. Can anybody name any reliable sources?
In my opinion if you are looking for premium mobile traffic then try Airpush apart from Google's admob its the best in the market.
Have you tried Propeller Ads? Its also a very well option for buying Mobile traffic.
As per my opinion don't buy mobile traffic. Might be it is fake, create a responsive website and promote it forcefully.