Where can I get industry analysis on mobile betting ?

Im trying to get some analysis for a report Im doing on how mobile gaming is used in the U.k.   For example , do users of Betfair browse markets with their mobile or is the mobile access only used in the majority for placing bets and then logging off again.   

Where could I find the number of mobile transactions taken by betfair over the last few years ?

Likewise , the number of mobile transactions taking by other traditional bookmakers ?

any ideas , thanks