Does the iPhone 3 have facetime?
No. The only iPhone that has FaceTime is the iPhone 4.
Can you use facetime on the iPhone 4 if whoever you're talking does not have an iPhone 4?
No you both have to have an iphone 4 :)
Does the iPhone have facetime?
The iPhone 4 and the iPhone 4S have FaceTime.
Do you have to have wifi while doing facetime on the iPhone 4?
Do they charge for Facetime if you have an iPhone?
yes of course you can you can get anything on itunes but its elligal and ull get in trouble/in court/prison