Most people would expect a company to have learned from prior mistakes. It's 2010, not 2000.
Most people knew that Harmattan was not going to make it to the Fremantle device; however read the threads around here and you'd see that hope was still alive. Hope is now fully dead. Stabbed in the heart by a protracted, 6 month delayed answer from Nokia that finally, and clearly stated what most people had assumed to be true already - the N900 was a dead end. The early adopters largely knew; the new users, or the people in Hong Kong did not - it just got launched there.
I'd honestly have to say that you have the healthiest outlook of anybody about this situation. I don't disagree with your stance; I just wonder how many times will people continue to support Maemo/MeeGo when each device is a dot-revision away from obsolescence based on whatever whim Nokia comes across.
The decision for resistive screen was basically a bad decision - capacitive is their future now. Multi-touch (which we all knew was never coming to the N900) will be the new drive forward.