Onomoto - like I said, I was trying to fit my story into the continuity of another story which is based in a futuristic society, so an old-fashioned phone wouldn't make sense.
Tony - the whole story is a pretty complicated one that's been running for over a year - check
www.perplexcity.com for futher details.
If I have time over my summer holidays I might do a longer sequel since I seem to have been getting pretty positive feedback. Thanks.
EDIT: thanks also to makotosun and minsh for your kind comments below.