Luckily enough a few hours of work for the Breno Masi, the team MacMagazine, to make the MMS on the new beta. :-)
The fantastic is the Network setup screen now allows a complete configuration of MMS, as you can see the third screenshot above.
The act requires the publication of a new .ipcc with a key that activates the MMS. Sending for the iPhone should be done with the first beta of iTunes 8.2, as the current no longer allows it.
Thanks to Rafael Fischmann for the heads up...