like all models of the iPhone you only need wifi access if you want to use the wifi facility on your handset. Using the wifi mode allows you to use your home or other source of broadband ADSL, rather than using the data allowance provided as part of your network package from your network provider. If you have unlimited broadband then using wifi is free and there is no limit of the data used home or other wifi such as free hotspots. Also certain applications use the wifi network such as iMessaging which is free also when used via the a wifi network.
in essence you do not need to enable the wifi mode on your handset but it has it's advantages, namely cost savings on data allowances.
No but to get full use of the handsets features it's best to have some sort of internet connection either on wifi or over the mobile network.
yes
No, the iPhone 4 is the first one that can run face time.
Yes. There is facetime for iPhone 4.
The iphone 4 was the first iphone to do face time, the rest did not have that.
It does have Face Time yes.
The Face Time feature of iPhone 4 only works iPhone 4 to iPhone 4 over Wi-Fi. No other devices will work with it. The only way for Face Time with your non-iPhone 4 wielding friends is to physically go over to their houses.
Yes the iPhone 4 does come with FaceTime per loaded
If you have wifi
The ipod touch 4g can video chat with an iphone 4 if you have a WiFi connection.
If you just connect a router to your iPhone, then the Internet should be free.
Yeah. I'm sure all iPhones do.
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
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.