I have added links to some useful software on the App Store that you can use to chat with other people using your iPhone, iPod touch, or iPad.
yes
No
You Cannot Chat in Ipod Touch or Iphone only in a Ipad
With the free Skype app installed the iPod touch can do video chat on Skype. (See links below)
The iPod Touch can use FaceTime (See links below) to video chat with people on Macs.
no. I have one, it can take VIDEOS but not video chat. Hope it helps.
You can chat on Gmail using the Hangouts. It is the official Instant Messaging app of Gmail. You can start chatting on that using iPod touch too.
You can use FaceTime on a Mac to chat with an iPod Touch (See links below).
you cant stupid
Go to http://www.google.com/talk on safari on your ipod touch. :D Enjoy!
If you have the Facebook app, you click the grid on the top right corner, then click chat, click a name, and chat with your friends.
Hold down the person you want to close the chat with and then slide it to he right