Truphone is hardly new. I've been using it on my N95 and now iPhone for a while now. I thought it had already been used on the Touch with people using the iPhone headset but I could be wrong, it might have been Fring, or a J/B iPhone, so apologies if that was the case. But either way, I'd hardly call it BBC newsworthy.
I have been using this in my IPhone 3g to call my family abroad. It works great but it seems that the calls drop every hour. and there are some problems with stability.