"of the people visibly using a cell phone, 20% to 40% of them had an iPhone" i imagine the visibly using a cellphone is the key part, as i'm sure most people o

"of the people visibly using a cell phone, 20% to 40% of them had an iPhone" i imagine the visibly using a cellphone is the key part, as i'm sure most people on bart have cellphones but the only ones people play with on the subway have either an iphone or android phone. same case w/ iphone market share vs iphone mobile browser usage share.