I pay for an Unlimited Data plan. I see no reason to be ripped off .10cents at a time to send a simple text message or photo to another ATT phone..

I have 3 other phones on my Family plan.. I'd like to send them text/photos/rings etc.. Occasionally.. Without using the SMS system..

I have successfully sent an Email to the phone usung the Phone#@mobile.att.net format.. Works great... but how about photos and sound?