This gets a nod more as a proof-of-concept than a phone you'd actually want to own.  Sporting a rare 3.5mm headphone jack and a 4GB hard drive alongside Wi-FI connectivity and a 2MP camera, the N91 can do everything - on paper, at least.  Problem is this phone is a beast, at 113 x 55 x 22mm and some 164g.  Now that flash memory is available in capacities 4GB and greater, maybe Nokia will release a streamlined N91.  Or maybe the N95 plus a big memory card will be the phone everyone wished the N91 was.
SEE ALSO: Samsung SGH-i300, also with built-in 4GB hard drive.