The folks over at 9to5Mac have kept up their investigation of FaceTime over 3G with a quick and dirty data usage analysis. Lest you've forgotten, jailbreaking Apple's Quattro permits walled garden escapees to FaceTime each other using dusty old 3G, and now we've got some numbers to show how much of an impact doing so will have on your bandwidth allowance. A 5-minute call resulted in 14.7MB of data transfers -- including both uploading and downloading -- for the 3G-riding iPhone, which breaks down to a rate slightly lower than 3MB per minute. That's not too horrible when you consider some streaming services use that much just to feed you video of England embarrassing itself in global football tournaments. Then again, we'd be remiss not to note that Fring does it at a claimed 1MB a minute and sans the jailbreak -- but who are we to begrudge having more options?

[Thanks, Sam]

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