It's a good article (especially since I agree with most of its points). The one thing that everyone here needs to keep in their minds is the conclusion. Carolina Milanesi of the Gartner Group says:

"It has no appeal to someone who just wants a phone - its about developers. It's a PC first and a phone second, its design is not something that will appeal to many people. It is technology for the sake of technology, but it's very encouraging as a platform going forward. It is not fixing the problem. It is more of a proof of concept".

If that is true, the N900 may not be long for this world. The question (which most of us will not be able to answer and which those who could answer are probably not permitted to honestly answer) is whether or not Nokia views the N900 as a beta test.