Well, Im sure that Im not alone when I say this, but the only real incentive I had to update to 3.1, was MMS. And when I heard it wasnt on the update, I decided to wait to update so I dont lose my Jailbreak and all the sweet kickass things along with it for no reason. But, last night, i was reading online somewhere about The SinfulIphones way of getting mms, and it works! I have sent and received pictures and have not had a problem with it. And it was by far the easiest way to get it. All you have to do is go to Cydia, add the source repo.sinfuliphone.com/ . and once done, look for the app MMS and tethering settings. Install and then reset your network settings. It explains how on the description of the app.
Hope it works for everyone else like it has for me.
Hope it works for everyone else like it has for me.