How much data does the Draw Something app use approximately? Because when I tried the iPhone basic cellular data meter, it showed like 5MB after two hours of playing, which seems quite low.
I'll give them this credit: the size and compression of the photo's sent/received by Draw Something is quite spectacular. If the size of your transfer was anything more that 5MB, I'm almost certain their servers wouldn't be able to handle the load going on - especially given the volume of users playing the game.