How about these much-needed additional data sets? How many apps are being purchased per user? Are Android users spending an average of $.50 on one app, while i

How about these much-needed additional data sets? How many apps are being purchased per user? Are Android users spending an average of $.50 on one app, while iPhone users are spending an overage of $.50 per app on 10 apps? What percentage of iPhone apps are free? Versus Android? Without these additional data points, the average expenditure per user is meaningless.