Accoring some news I was sent by Andy, 
customers will be able to call countries in its “Tru Zone” at the fabulously low rates of just USD0.06 per minute to landlines and USD0.30 per minute to mobiles from almost anywhere on the planet. More importantly, a Truphone-to-Truphone mobile call is always free, no matter where in the world the two parties may be travelling.
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Sounds great, now if I could only use it on my Blackberry!
