Who cares how open it is if it is SO BEHIND THE CURVE in terms of cellular technology? No maps program that even comes, very little use of the front camera, no speech recognition, spell check, a decent map application, these are not new concepts - these are things that are a must in modern day mobile phones.

#1 The N900 is not 100% open source, not even close, anyone who claims that to be true is a liar.
#2 We cannot program these things mentioned above into the operating system, because those parts of the OS are CLOSED.

So in reality - who cares how "open it is" - I am more concerned with what it can and can't do. My N900 can't do a lot of things an iPhone 4S or Android phone can. To flip the question - what can my N900 do that an iPhone 4S or Android cannot? True Linux OS with root access? Cool!

Now what can't a Jailbroken iPhone 4s or "rooted" Android do that the N900 can?

If anything I am a Nokia fanboy - I had the 1st gen iPhone, returned it in a few days. Set up a few Android tablets for my friends, but I am just being a realist.