Um...you do mean "buy it" right?
I can hear you perfectly clearly too...no need to shout...I'm right next to you.
Sharp...I do commiserate with you...I love my n900 to bits...
Heck I still got a thing for the old n8x0's interface...retro vintage in this day and age...
So there is maemo 3 , maemo 4, and maemo 5...I love them all...wish Nokia hadn't of junked the platforms...wish they'd have made them a little less constricted with proprietary bits and locked up sections....but that is the hand we are dealt.

Anyway...for starters...lets say the laws of nature went wacko and...the sun turned electric-blue and maemo couldn't be put on the new neo900.
(It isn't fact...just hypothesizing here.)
All the benefits stated are still there in the neo900.
Form factor we all love...with the physic keyboard....resistive touch. etc.
same old n900...just better...with nothing locked up...no black boxes...no intrusive corp. bits....as open as the wild plains of Saskatchewan
.sure-sure It isn't completely open..some things can't be helped ...but it is a more open device than just about everything else out there shy of only the openmoko line...or the pyra.
As a topper ...with less corp. proprietary bits caging us in (like now with the n900)...making things difficult and awkward ...let alone wishing to run a variety of alt. operating systems properly...
Hands down (even without maemo os on it) ...it will still be the better alternative to an android, winphone, iphone, googlephone, tizen(I believe), firefox or 'buntu phone .
I'd rather have the neo900 with my freedom of choice...than all the corp. proprietary locked-up octo-core phones on the planet.
But that is my feeling on the matter.
I'm convinced.