if find all these threads very amusing i must say,
But i also think what is the problem that people seem to have.
A comparison of my N900 with my previous phone the E90 (symbian, a real phone on enterprise level)
The things i did with the E90, ordered in importance:

1> Web Browsing
2> Email
3> SMS (gsm or voip)
4> Phone (gsm or voip)
5> IM (chatting, calling i almost don't do because i use real voip (a betamax client))

The N900 wins 3 those 5 points by a large margin...
1> MicroB is way way better then the browser on the E90
3> SMS better integration with contacts book, conversations that really work (E90 it crashes)
5> IM no need for a separate applicaiton, everything perfectly integrated into contacts, with conversations support.

Then 1 point that i see pretty equal but the N900 could be a bit better:
4> Phone , normal dialing , contacts on desktop, call log, all work fine

only 2 points that should improve:
1> Voice dialing i really mis in my car.
2> It happens now and then that the phone rings but the N900 is busy with something (i believe if i have browser windows open...) that the N900 struggles to get the app to font so that i can answer it!
This last point really should be looked at, if the phone rings, the phone app should take the highest priority and all others the lowest. This is also 1 area why i am really looking forward to a dual core Cortext A9.. that will boost mobile computing as much as dual core on the desktop did!!!

then i come to point 2... Email
Yes now i agree with that the N900 fails big time here (for a mobile computer!)
The combination i had on the E90:

Profimail for some IMAP accounts and the java gmail app for gmail stuff is so much better then the N900 combination of Modest for the imap (and or gmail) or gmail also in the browser...

That area really needs some love, modest just plain sucks... It is usable for a bit, but thats just it.