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July 11 could not come fast enough for a few million folks dying to get their hands on the new faster, sleeker, cheaper iPhone 3G. (Count me in.) But what I found most interesting about Steve Jobs's big announcement yesterday is Apple's abandonment of its iPhone business model so far: exclusive carrier agreements.

In the six countries where you can officially get an iPhone, Apple has signed deals with mobile carriers (such as AT&T here in the United States) that give Apple a cut of the revenue from the carriers' service plans. But within weeks of the iPhone's launch last year, a massive global gray market in hacked iPhones emerged -- much to Apple's surprise. The company still made money on iPhone handsets, but it was missing out on millions of dollars in revenue it could have gotten from its partners, since more than a million new iPhone users were using hacked phones on different carriers. So, instead of pursuing what was clearly an untenable course, Apple yesterday switched gears, dropping plans for exclusivity agreements in new markets. In other words, they learned from the gray market that their business model simply wasn't the best way to go:

We've changed our business model, from getting a cut of the future revenues to just a more traditional model," Mr. Jobs said in an interview on Monday. "That’s enabled us to roll out around the world much faster."

As for the new business agreement in the States, Apple and AT&T will no longer share revenues as of yesterday. But it still sounds like AT&T will be the exclusive carrier through the end of its multi-year contract, believed to be five years. At the very least, it will be harder to gripe about AT&T's slow download speeds on the new 3G network.