Hey all, my first post here and I don't even have my Mogul (yet...), but I've been researching 3rd party apps in advance to pin down what I want to do with it as soon as I get it. I found this video:
http://youtube.com/watch?v=tqfeO7RAKOE (skip to around 5:40)
It looks like he has something along the lines of what lilvo is looking for. However, I'm not sure if that comes with one of the cube/touchflo programs the person in the video installed or even if the SMS threader is fully functional (he just shows it, never actually interacts with it). FYI, he lists the versions that he used for the cube and touchflo interfaces at the very end of the video.