Truphone is a free piece of VOIP software that has been available on S60 phones and the iPhone for some time now.
Truphone have now launched a BlackBeryy version of this popular VOIP client allowing users to make free or very cheap phone calls with no roaming charges
Instead of requiring the user to remember what to do, Truphone Anywhere simply asks whether he/she wants to make a Truphone call whenever an international number is dialled. The user simply accepts, and Truphone connects the call. This reduces international call rates to as little as £0.03/$0.06 per minute.
The Blackberry application can be downloaded here
Press release after jump.