Jerome, I agree with your comments about WiFi. Unless you live in a city with WiFi on every pole, you can only use it for intermittent connections. Useful, but not ubiquitous.

The solution is cellular data or WiMAX, which typically has much better coverage.

The market for ubiquitous internet will appear when the charges become reasonable. In some countries (USA) they are there or very close. But in others (like Canada) you simply can't afford to make much use of it. But that will change with time.