Flashback: the Nokia N91 was legendary for its audio quality, but was a one-off

Nokia unveiled the Nseries in 2005 with three devices - the N70, N90 and the star of today's article, the Nokia N91. The announcement came in early 2005, but DRM issues pushed the release back to 2006. Still, this was a hotly-anticipated phone, winning the "Most Innovative" award from the Mobile News Awards. It was worth the wait too, the N91 was widely considered to have the best audio quality of any phone. It sported a 3.5mm headphone jack, making it compatible with the best headphones on the market. Nokia recommended several Sennheiser, JBL, Harman Kardon and Bose headsets in its press...