"The P990 remains an important flagship product" says Oskar Lampel, SE Production Manager in an interview on Symbian One. "...[we have] changed the timing of the P990's introduction to ensure both phones get to market as early as possible."
While practically this might be a good idea, the continued non-appearance of any UIQ3 devices after having the software announced over two years ago could come back to bite SE in any 3GSM press coverage.