Nokia decided not to push an official backport for a variety of reasons, most of them business related, but none of which include "completely impossible". Your argument seems to be that Nokia simply doesn't have enough resources to do it, but the reality is more "it doesn't make good business sense to devote the amount of resources it would require (and thus take them away from Fremantle proper) to develop an official backport".

The community has a number of advantages over Nokia in pushing their own backport. First, they're not hindered by any of Nokia's "quality" or "support" requirements, so they're free to make shortcuts and implement hacks where necessary that Nokia isn't. Second, they're crippled by long release pipelines. Third, and finally, they can dedicate their free time to whatever they want to and don't need to focus on Fremantle.

All of this makes the community faster, more agile, and more capable of getting the job done than Nokia.

Debian is a dead end for a mobile platform. You'll never see battery life on the same level as Maemo, and it really doesn't provide the answers and solutions you think it does.

Mer is the direction to work towards, not trying to shoehorn a server- and desktop-oriented distribution into a mobile device it was never intended for.