You should consider that the N900 is a first of it's kind though and maybe compare it with one of the first androids.

Even so the Nexus one was a complete mess and I won't bother giving you the links to prove that google/htc still have a lot to learn about customer support and the fact that google isn't tailoring the devices themselves is androids greatest weakspot.

I know HTC from winmo times so phones built by them don't really inspire me, as for android... you do know it lacks basic features as auto updating the apps?

But I do agree that N900 wasn't built at all around the phone or music experience and there's a lot to improve. As for sat nav sygic does a fine job IMHO