Yeah, it doesn't feel
that dated until you get into the technical details. I think part of that stems from the fact that Gibson didn't really know anything about computers and technology (and, IIRC, wrote
Neuromancer on a manual typewriter). The novel itself is about humans. Well, and a couple AIs also.
But a glaring example, as Gibson himself has mentioned, is that lack of cell phones. In fact, once of the most powerful scenes in the novel -- that I remember raising the hairs on the back of my neck as a read it -- involves the AI, Wintermute, wanting badly to talk to Case. Case is walking through an airport, past a bank of payphones, and the AI causes each phone to ring in turn as he passes it.
There aren't even long banks of cellphones in airports anymore, but that notwithstanding, why wouldn't Case and Molly and everybody have cellphones, in this future-world where they have fully immersive VR interfaces to the matrix?
Of course they would. But you can't really hold that agains the decades-old novel... especially since it was so remarkably prescient in so many ways.