So I got my iphone 4 unlocked from AT&T and am using it on T-Mobile. I do not have a data plan and have been trying to figure out this iMessage and Facetime thing. I got iMessage activated and working last week. Used it with my brother and sister several time (one on AT&T the other on Sprint). Later called T-Mobile as I was having issues with receiving picture texts, which I have since fixed, and found out I was being charged for international texts each time I sent an iMessage. T-Mobile waive the $1.80 I racked up but I'm confused why other say they only got charged once for the activation but I get repeatedly charged. Any ideas?

First ...Go to the Apple APP store and load the WhatsApp Messenger

WhatsApp Messenger for iPhone on the iTunes App Store

here is the Whatsapp for all other cell Phones ...Android, Blackberry and Nokia.
YES you can TEXT the other people on Blackberry , Android and Nokia for FREE


with the whatsapp Messenger you will never be charged for TEXT messages or Pictures messages and Voice Messaging .....all over the world....yes FREE .. just have all your friends load whatsapp
never use iMessage again its a pain in the back side...

you also mentioned FaceTime....did you get FaceTime working?