Theres a difference between being annoyed at the lack of portrait mode and going to the extremes of selling your device because it doesnt have a feature it never was designed to have or advertised saying it would have. I knew the N900 was a landscape device months before I got mine. Whatever new phone you get, research first. Otherwise you will find some other fault and send that back too.

In regards to the new firmware, people say this is the update which should have been on the phone to start with. At the moment, I've noticed no major difference, except speed. It is snappier. It seemed to also (hopefully for good) fixed a wifi issue I had. Any update is good for me.