well, I have it installed on a T-Mobile 9700 but after LOOOONG delays including the aforementioned Black screen, I am now looking at a ridiculously spartan white screen with a plain text clock in the corner and nothing else. I can't open menus to try changing themes or anything because there's no telling where the cursor is. I did have to sit a long time just to get this far and 2 videos came up over that time. One appeared to be a BB Boot video and another was some kind of demo of how to use the new browser. Screenshot attached.