Technology Lag

[sinmay]

I wonder, if Fuyumi Ono does decide to finish Ghost Hunt, will she update the technology? Ghost Hunt was written in the early 1990s, so some technology, like cell phones were not included. I recall Naru also used a cassette recorder to record what Mai said in the first volume--something that mp3 players can do now. Of course, if everyone suddenly has cell phones, it might seem a bit sudden. Anyone have any ideas? The idea just came across my mind while I was reading fanfics.