Last mile

On the Isen blog a list of predictions about Wireless Broadband Internet Access is made:

4. In the ‘last mile’, wireline-based technologies and systems will generally prove to be insufficient or not cost-effective to provide ubiquitous, always-on, Broadband Internet to most homes and businesses;

I am not sure I agree with this. I do think that at home a WiFi-solution is great, both for in-home and offering a hot spot. But will wireless be enough to do the last mile, especially in crowded areas? DSL and cable seem to work well in cities as a solution for the last mile. Undoubtedly fiber will move closer in as well. I see wireless as an intermediate solution. As demand builds, fiber can get closer and the wireless part will get more dedicated to a single home. But maybe this mean that I do agree for the short term and also for the long term, but then the last mile is no longer a mile.