Cleary, now you're just arguing for the sake of arguing.
There is nothing that hinders the n900 from being what it is, whilst being in Portrait. I'm not saying discard Landscape completely. I'm saying it'll be there when it's needed. Simply the reverse of what is forced now. The "envisaged" uses for the N900 are not from another world. They are the same for other devices. Internet, Browser, SMS, terminal.....Landscape can be an option for any on these. but there is no strong reason for the Menus and home screen to be in landscape. ...