I am on iPhone International with ATT with an iPhone 3gs which means I have unlimited worldwide on device data. My wife has BB International from ATT and is similarly situated. When we are both outside the US, we would love a way to talk to each other for free. We use WhatsApp to text, send locations, and an occasional voice message. I pretty much gave up on VOIP with Blackberry.

The Torch is about as close as I've seen Blackberry get. Can anyone think of a way we can talk to each other? Half duplex will work.