What goes for low light conditions, ndi is right that it is tough task for sensors in mobile phones and no postprocessing can make a replacement to a good sensor with smaller noise in a low-light conditions.
However, for typical Finnish winter day light conditions (which are far worse than normal light conditions we are assuming usually in such discussions) it is still possible to get good results with N900.
The infrastructure is there, a limiting factor of not supplying the IPP element switched ON by default was processing time as I said. It is program-level decision and has nothing to do with sensor quality.

I would say that many people try to express their opinions in a monochrome style, meaning that opposite for "good" is always "bad" or "evil". Life is full of shades, though.