The WSJ is a little behind the times on this one. Crackberry and Engadget has been all over this thing since last May, with rumors of the slider since maybe last March. The 9800's specs are known, pics and videos of it running OS 6 have been seen, and the new name is likely going to be "Torch" instead of "Bold" - although that's not a definite yet.
Check out the most recent pics from June 24th - running with the AT&T start-up screen at: Exclusive: BlackBerry 9800 for AT&T fully exposed! -- Engadget
Oh, and isn't there a group on this forum already for the 9800?
Yes, it's at.... General 9800 Series Discussion - Slider - BlackBerryForums.com : Your Number One BlackBerry Community