its probably because nokia did not intend it as a mainstream device. stupid on their part as no matter what people are saying here it was not advertised as a geek phone but as a device having a great browser and excellent media capabilities.
in my country nokias are everywhere and im beginning to spot a lot of n900s pity many wont even understand what it is really meant to be i.e. a developer's tool. i myself am just an average (if not less) consumer but im willing to learn and knew what i was getting myself into.
anyway i guess nokia does not care about the n900 except that they can sell more than was intended to people who dont even know what maemo really is about, i.e. the stupid step 4 out of 5.
however i always say we can rely on the community who are honest and hardworking unlike nokia (im obviously not referring to all those who work at nokia).
just give up in thinking nokia cares bout n900 users. it doesnt give a crap about us who have spent, in my case, €550 or more.