I want to be able to make free phone calls from an iPod touch. I've used Google Voice for my computer, but it doesn't work for an iPod touch. How should I go about doing this?
Nimbuzz to Nimbuzz
Free (video) calls (over 3G, 4G and WiFi) for iPhone to iPhone and iPhone to PC.
Connect with any SIP
You can connect to any SIP provider. Get your own cheap provider for VoIP calls and connect it with Nimbuzz.
Nimbuzz also connects with:
Talkatone (App Store link) Free
Allows you to make completely free phone calls using your Google Voice account. There are ads, but hey, it's free! I've had no trouble with it at all and I highly recommend it.