Just going to issue a challenge out here...

What other "phone" out there can do everything the n900 can? (i say "phone" as the n900 is primarily a computer, with a phone secondary)

Hell, i can even remotely control my home computer (VNC) from my mobile phone.

With the amount of capabilities it has, if you wanted a "polished" product it would cost twice as much as it does now, and you'd be locked into the programs they provided (like the iphone). If you say "well, the community can replace anything they want with whatever they want" then you cut away some programming and reduce the end price, then the user "polishes" the phone themself, individually, according to their requirements. You can't polish a phone to suit everyone's needs, because i can guarantee something will piss someone off every time.

As i said earlier, if you want something changed - program it yourself (BECAUSE THE N900 ALLOWS YOU TO DO THAT)