iPhone, Evo, Droid Incredible, Nexus One: Which Has Best Total Cost of Ownership

The iPhone makes the most economic sense of leading smartphones if you opt for a minimum voice/data/text plan, says BillShrink.

The catch is, BillShrink’s research has found that that average data usage per person has risen a dramatic 3.5 times over the last 15 months. If higher usage means a user cannot buy the iPhone minimum data plan, then a Nexus One on a T-Mobile USA unlimited plan offers the lower total cost of ownership.