Sometime in March of 2011
Yes, you have to be connected to wifi when you want to FaceTime with people. They need to be connected to wifi as well, so text them and tell them you're going to Facetime them and to turn on their wifi.
If you have wifi
The ipod touch 4g can video chat with an iphone 4 if you have a WiFi connection.
No, Although in the beginning of March, IOS service was brought to oovoo. Oovoo for iPod touch, iPhone 4 and iPad 2 will come out In April. It will be free. Please go to oovoo.com That Way You can sign up and be notified when oovoo is out.
If you just connect a router to your iPhone, then the Internet should be free.
Yes you can text on the ipod touch 4. You need wifi and you have to download the app "Textnow" and you can text
Yeah. I'm sure all iPhones do.
No software is required to use Facetime on the iPhone 4. It is required that you be on a WiFi connection. Facetime can only be done from one iPhone 4 to another iPhone 4. If you are using Facetime on a jailbroken iPhone then it is possible to Facetime chat with out using a WiFi connection. Simply go into Cydia and search for a package called My3G. This app allows you to trick your iPhone into thinking is it on Wifi connection allowing for Facetime chat over a 3G connection. An alternative to using Facetime would be Skype. Skype can be downloaded in the Apple App Store. Skype is video chat that can be done from iPhone 4 to iPhone 4 or iPhone 4 to a computer or computer to computer.
Use open the app if you are on iOS 6. If you are not on wifi then it will fall back on your cellular connection (3G or LTE). The only problem is that AT&T blocks this feature on iOS 6 unless you have their shared plan
YES, It's free. but just can use at apple product. for example: iPhone 4 , iPhone 4S, iPad touch, Recently At&t added Free Facetime over 3G before it was only offered on wifi. Source of info is added below in links
To trade the iPhone 4 to get iPhone 5 you need at least $50.