There are alot of rumors around that. I've heard and read Tmobile was shipping on 9/5, but then I read today that they are shipping on 9/13. The website doesn't even have a date and the reps can't give anymore info either. I have a feeling we'll all get them around the same time!
I've actually seen the text with my own eyes. A coworker received it. The text states "soon", which is open to interpretation, but I don't think two weeks qualifies as "soon".