R.U. Sirius was a founder of Mondo 2000, the definitive futurist magazine of the early 1990s. And now he's posted a ton of snippets from it over at Omni Reboot – including this amazing 1993 chart showing all the gadgets a cyberpunk needed. Like a portable computer and cellular phone!
Check out this chart and see if you qualify to be a cyberpunk!
You can read (and see) more of the history of Mondo, including RU Sirius' and William Gibson's recollections, over at Omni Reboot. Sirius is also working on an oral history of Mondo, which can't come out soon enough.