This is the problem with the whole N, E, C, XM etc labeling. Nokia should have never brought the internet tablet line into the N-series labeling and instead created a new line perhaps M-series.
A differentiation like this where they align user expectation with maemo, linux and the idea of a MID rather than Symbian and the notion of a 'smartphone'. The computing tasks available to users of the tablet line are so much more advanced than a smartphone but the 'smartphone' features are clearly somewhere from back in 2004.

Maybe once most of the features were aligned should they have been tagged N-series, which from all reports seem to be around Harmattan/Meego1 and Symbian 3.