I don't know why people are still speculating - the revenue formula has been laid out clear as day:
[(addressable audience)(grins)(mobile phone brands)] - (ATT+TATA, or 0) = ($5 million CR)(26%) + x('we'll answer select questions next week')
This reduces to:
(hockeysticks) = x('vote for us on twitter')
Solving for x, x = $15 billion
"Yes Mensa, I accept!"