It’s already known that AT&T is activating MMS for the iPhone on Friday, but the company has now narrowed the time frame to within a few hours.

As reported by AppleInsider, AT&T’s official Facebook page said the service will be activated late morning Pacific time Friday. That’s not exactly definitive, but at least no one will need to sit around all morning wondering if it’s on yet.

The iPhone’s multimedia messaging service will allow the transmission of photos, contacts, audio files, and locations with the Messages app, according to Apple.

More here.

Think Text Messaging with pictures.