The latest iPass Wi-Fi Hotspot Index, covering the first half of 2007, came out this week. The data for the service is based on the usage of iPass' network of 80,000 hotspots in 85 countries.

Wi-Fi Networking News' Glenn Fleishman says the findings aren't too much of a surprise. "Airports dominate usage with 46 percent of worldwide sessions taking place there," he writes. "And London, with super-expensive Wi-Fi service on a pay-as-you-go basis does not surprisingly land first on their session list with 1.3 percent of all usage and 25,049 individual sessions."

"London built on its previous position as the number one worldwide Wi-Fi city - with 124 percent growth in the first half of 2007 compared to the second half of 2006, and the average user spending 49 minutes online," notes Silicon.com's Gemma Simpson. "Nearly four times as much Wi-Fi was used in London during the first half of 2007 than in second place city New York."

More here from Web Worker Daily ... more here from InformationWeek ... and more here from ITPro.