How iPhone kills ATT cell network http://j.mp/bMXJOI via @kwerb. Ready for #attfail @sxsw? considering Sprint for a month, maybe even a 30-day trial of a Sierra Overdrive 4G wifi hotspot: http://gdgt.com/sierra-wireless/overdrive-3g4g/ (previous jmp longurl: http://arstechnica.com/gadgets/news/2010/02/how-smartphones-are-bogging-down-some-wireless-carriers.ars)