The Register's take on the 7710 for those who didn't see it: http://www.theregister.co.uk/2005/01/13/nokia_multimedia_cuts/

Anyone with a challenging opinion?

And the Register had a link to my review... ;)

Nokia will move towards touch screen devices, so even if the Series 90 dies (ie merge with Series 60), the basic concept will live-on elsewhere in the Nokia range. The key issue to address is matching the s/w and h/w for video playback. The (fantastic) screen is there but the s/w does not seem to be.
;)