iPods do not support phone calls, unless you call over Wi-Fi, which are usually unlimited talk.
No the ipod is just an ipod you cannot use it as a phone.
I would go to different locations and check to see what kind of rates they are selling the iPod Nano for. You can also talk to some friends that may have an iPod Nano and ask how much they got their iPod Nano for.
no thats called an iphone :)
it depends where you go to get it unlocked maybe talk to an apple person in a shop
Go to http://www.google.com/talk on safari on your ipod touch. :D Enjoy!
iMessage for ios5 or text me which you can buy in the app store
if you have to talk into it then you cant because an ipod doesnt have a microphone!
As far as i know you can only talk if you plug in a microphone. I hope that answered your question! 
no there is one much smaller--ipod shuffle
tell them everyone has it, it worked for me.
You can talk to him over instagram for iPhone and iPod touch or twitter or Facebook
It depends on how much space or how much music the person as on their iPod.