It annoys me to see speculation on why something had been dropped, without making it clear that you were also speculating what had been dropped.

If you said, "I think they're going to drop the stylus because a) the stylus keyboard has gone, b) the Nokia 5800 has a plectrum instead of a stylus, c) the concentration on finger-friendliness and d) a possible aim for a capactive screen" - that's what speculation.

If you then said, "I think they're doing this because Microsoft has formed a deal with green space-faring lizards to put Nokia out of business as Maemo is a threat to Windows" - that's why speculation.

The key phrases in both of these are "I think". Some things we know for certain (some things we know so well, we have to say them over and over); some things we don't. The only people who know everything don't say anything, so it's disingenuous of you to suggest you know the stylus has been dropped.