Thommy is completely right on this, altough I would suggest you use only popunder and or banner to redirect your traffic. This is way more user friendly and the quality of your traffic will increase. Likely popunder traffic is not the best quality, but still better then redirects in general.
From my point of view the quantity of the traffic will decrease if you redirect all your mobile traffic, but your quality will increase heavily, in the end you should be able to make the same kind of revenue.
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