If you're someone who reads this blog but is still waiting for the cost of smartphone ownership to drop enough for you to get one (I used to be one of you, so I know you're out there), then newcomer Scratch Wireless might have something to say that will pique your interest. This company pitches itself as the world's first truly free mobile service, and it does this by relying first and foremost on Wi-Fi access for voice and data.

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