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JiWire serves ads through public Wi-Fi spots in places like airports, coffee shops and hotels. Last year it published another interesting stat: Just shy of 98% of mobile devices that connect to public Wi-Fi are made by Apple. The iPod touch and iPhone took 55.95% and 41.7%, respectively.
Those numbers have slipped slightly since then, with Google Android devices passing Sony's PSP to take the third-place spot on the list.
Public Wi-Fi hotspots grew in ubiquity by 21.9% in 2009, and about half of public Wi-Fi spots are free. JiWire also found that 49% of mobile Wi-Fi users make online purchases on the go.
Amazon and eBay were unsurprisingly named two of the most popular online shopping destinations for the folks who were surveyed.