I think the biggest issue I have with this data is that 79 percent of top advertisers don't have a mobile- optimized website, http://www.standard.net/stories/2012/01/20/businesses-need-m.... I certainly rarely ever make a purchase on my iphone. I simply look for deals and then purchase them on a PC. It seems that either people are not really making as many purchases as the data suggests or that all of the big corporations got it wrong.