One of the great problems for a modern reader of nineteenth century fiction, is that the characters use terms to describe everyday things which we no longer have. I remember reading Jane Austen and being amazed by the number of names they seemed to have for horse drawn carriages. It is a shame that wikipedia did not exist at the time, for a handy list is available here.
I wonder what the equivalent will be in 150 years time: a character who refers to a Blackberry, iPod, mobile, cell-phone, PDA, Laptop? 'Whatever can they be on about?' the future reader will ask, only for his armchair to reply in a very human voice; 'Do you really want me to go into all that?'