Should have come here first and said you wanted another phone I would have traded you my blackberry for the N900 it does MMS. The browser sucks and there is not a decent ssh client for it but it does MMS real good even though I have only used that feature 4 times.
There is a reason there is a Ford and Chevy people want choices, if Nokia does not meet your needs then move on get a phone that does.
I am still trying to find a perfect device for me, if I had the blackberry email capabilities with the N900 browser and ssh client I would have it.
Sadly the email client on the N900 is crap, but I have downloaded the the new QT SDK and am working on fixing that, so who knows maybe I can make the N900 the perfect device for me someday.