I saw this nice piece on MSNBCs site about the potential dangers of offering free Wi-Fi over Muni networks. Do I think the dangers are real? Yes. As a business case Broadband Wireless consultant (primarily) I see the fallout of carriers charging too little or depending on unproven models to succeed all the time. The article makes the good point that lower density cities may not sustain free Wi-Fi. I am not so sure that any size city can sustain it with an advertising model. As I recall the dotcom crash was littered with failed advertising models. I suppose that a very low-tier and slow free level is okay or a discounted program for low-income folks could be fine. Or even a very, very low price slow speed maybe. But the fallout from failures will be devastating to cities, perhaps more than they realize. Being prudent for the long haul has much to recommend it. And besides if the value of having a citywide Wi-Fi network is there in the first place, then it is probably worth charging some for it. So think twice you big tall cities, think twice. Tim Sanders tim@thefinalmile.net  www.thefinalmile.net  www.wimaxglobalnews.com