It wasn't obvious at all that the N800 should be dropped just because the N810 came out. As has been said above, the one doesn't replace the other, and we were all busy back then pointing out how the two covered a different feature set.

In short, no reason to ditch the N800 production. Palm, for example, never ditched a model just because they started producing a new one, even with overlapping feature sets - the individual models all got a lifetime of up to several years (good for me, or I wouldn't have been able to buy a T3 when I did.. and without it I wouldn't have become a Palm customer, the newer models didn't appeal to me.)