When Tom Evslin says "huge", I listen.  He’s got an exciting prediction that:

Within four years, possibly three, free WiFi will be available on the streets of every American city. Building
services, applications, and devices to take advantage of this
capability will be the mainspring of Bubble 3.0 and may be the saving
grace for American competitiveness.

Then, he intelligently points out that this will have implications for local search. I remember reading in John Battelle’s The Search, close to 25% of all search is local in nature.  With ubiquitous WiFi, we will have computer-assisted solutions to our remaining "search/find" problems.  This should be a very disruptive wave.