Why would you? It´s N-series and addition to that....

"Don't think about spreadsheets, word processors, file managers, or closed systems. That should put you in the right ballpark to start with."

"Maemo is rough on the edges. It is a bit dangerous. It is open to experiments. It is about community involvement. I want these to stay. I do not like boring cars, either."

http://jaaksi.blogspot.com/2009/11/m...art-of-it.html

E-series is marketed as business device so that´s way to go if you want reliable device.

..edit
Still have to say that rarely this thing reboots and if it does so it´s because of some very experimental stuff. But still lack of professional e-mail/calendar makes it ..well...n-series.