SMT 5600 - Cingular MediaNet - Xpress Mail?

[Guest rasncain]

OK, so I was playing around and signed up for the Cingular XpressMail personal edition and set it up and got it all working.

My concern is what is this costing me? No where have I seen anything mention a price for anything. I have the MediaNet unlimited plan.

Is this really it? Is this simply working over my medianet account and this is not costing me anything extra?

Inquiring minds want to know! :-)