Nationwide WiFi In Singapore

According to CNET News, Singapore is looking to be blanketed in WiFi in a couple of months. It'll be the third country to have nationwide WiFi coverage, behind Mauritius and Macedonia. An ambitious project but with all the technology coming out of the woodwork known as the East, I'm not surprised.

Singapore is 700 km². It's just a bit bigger than Austin, Texas (670 km²). And just for comparison:

Tokyo is 2187 km²
(Greater) London is 1579 km²
Los Angeles is 1291 km²
New York City is 1214 km²
San Francisco is 600 km²
Seattle is 369 km²
Taipei is 272 km²
Paris is 87 km²

So how come we don't have WiFi coverage in just our major cities?

UPDATE:

I just stumbled across this bit of news today, although the news itself is from the 11th: Tokyo is getting WiMAX for Christmas.

Also found out that Norwich (39 km²) is set to become the world's first (free) WiFi city. Cost? £1.1 million.