Since it was obvious that AT&T failed to successfully and reliably enable MMS (notice I didn’t say successfully LAUNCH MMS) from hundreds of users on forums that I’ve read, I held off on upgrading.  I sifted through tons of tech notes, hints, tips, you name it.  I finally waited for 3.1.2 with the new carrier uprade from ATT.  I power-cycled, I even prayed to GOD ALMIGHTY ….and still no MMS outside of AT&T.  Oh sure, it works with the other AT&T users I tried, but it failed with the three other carriers that do happen to represent a large calling community. In fact, very few of my friends are with ATT and the ones who are are sorry they switched and just counting down the T-365 days to go back.  The worst offense was not being able to send or receive to Verizon users.  I even had them update their PRL profiles as was suggested on the Verizon forum — because YES – there is an ENTIRE Verizon forum dedicated to complaining that they can receive MMS from everyone in the Continental U.S. *except* Att users.  I’m in a major metro city in midwest with full coverage from almost all the carriers and not in some po-dunk little town with signal issues.   So what’s up with that? Perhaps its the IMEI file, but I haven’t gotten any ATT person to be able to check that yet. Has anyone successfully MMS’d (I’m talking about using the Phone icon at the bottom of the txt messaging window to attach a photo)someone to Verizon??  If so, what OS are you on (be specific), and what carrier upgrade are you on?  And did you have to call ATT first to make it work?  This is friggin frustrating.  MMS is not the end of the world, but it’s pretty indignant for ATT to make such a big deal out of offering a service that BLOWS so miserably.  It’s really embarassing for them.  At this rate, Verizon may change their minds about turing down Apple.