I'd like to know how they got ahold of that, since I just talked to RIM about an hour ago and according to their developers 4.0 for 7100 is barely working on their devices... I can't see that they would have released it to anyone else yet.
I have a 7100t, but my company is testing out the BES 4.0 now, so I've got to use a device that I can run 4.0 firmware on.
So as far as I can tell, every single person has heard something different about the firmware release for the 7100t. All I can say is that we called TMobile and they told us at the end of the month. I think they are confused with the other models since AT&T/Cingular has released 4.0 for everything but the 7290, they probably need to get it out as well.
As my company was lucky enough to be in the beta program, I hope it's true that they will release it in two week or so.