Yes you can(:
Both FaceTime and iMessage is free to Australia with AT&T if both parties have iPhones. FaceTime and iMessage are exclusive services offered with Apple devices. There is no charge for using these services.
If your phone does not revert to SMS and the receiver also has imessage there will be no data charges. The apple server controls imessage in this case.
depends on the generation if 4th then facetime calendar clock pictures voice recording stocks imessage weather. the rest are on apple.com
Yes. IMessage is not the same as the text messaging you have in something like a Samsung phone. iMessage only works with other Apple devices that have iMessage.
Yes you can and as FaceTime is now installed on most devices. You can also iMessage between devices free of charge (sending text messages), to IPad 2 and iPhone 4 and other iPhone and Touch devices. It uses your wifi connection and you can iMessage or FaceTime anyone anywhere as long as they have the iPhone, iPod Touch or iPad.
You have to have an apple id to use facetime, imessage, game center, itunes and the app store. but without one you can still use the calendar, photos, camera, emails, videos, maps, weather, passbook, notes, reminders, clock, stocks, contacts, calculator and microphone. you cannot download apps or movies or music without an apple id
If you have iMessage installed you can only iMessage other iDevices that has iMessage installed on them. If someone has an iPad 2 but not with 3G but has an iPhone, then the iMessage will go there iPhone.
No. iMessage is only available for Apple devices.
No. FaceTime costs $0.99 on the Mac App Store, and is built in to all iOS devices (iPhone, iPod touch, iPad) as of June 2010. FaceTime is not available on the iOS App Store.
IMessage is some thing were u can chat to people who have iPhone iPod or iPad! :)
Yes, FaceTime Plus uses FaceTime for video.
You cant unless a non imessage member texts you then it is green