Jamie, I was able to get this working recently on my N4 using the dev channel. I patched nuntium (trunk, see attachment) to be able to receive picture messages then I had to change some of my APN settings with /usr/share/ofono/scripts to be able to send. I don't use group messages, but when I send an image to my phone through tmomail, it receives it as a group message from my e-mail address and a blank recipient.
** Attachment added: "tmobile_mms" https://bugs.launchpad.net/ubuntu/+source/ofono/+bug/1360403/+attachment/4414101/+files/tmobile_mms -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1360403 Title: MMS does not work with T-Mobile US To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1360403/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs