Sony and Nintendo can be compared to Microsoft and Apple (no really, hear me out here

).
Apple starts something that's amazing, great, awesome, kickass, but does not sell (or not very well), like their PDA, or Lisa for that matter. Microsoft sees the potential in Apple's product, and copies it, makes it better, and releases it, with major success (thus the Desktop PC was born! *powerpuff girls story teller voice*).
Similar with Nintendo, they make something great (The gameboy [let's keep it at the portable side for now]), Sony sees it's potential, and copies it, makes it better, and releases it (thus the...err...well you get it by now

).
Neither of the devices are bad, suck, or anything like that. They both are great in it's own way.
I have owned a PSP, played with it, loved it. It's just an amazing piece of work (both technically as it's appearance). I've seen (and touched, get it?

) the DS at a local store (plugged/taped/strapped tight to a holder of course), and while I first thought it was too bulky, it actually is quite nice to hold. (Though that crappy game displayed really blows)
It's all just a matter of taste, nothing more. This will be one of those endless battles like Palm VS PPC, you can't do anything about that. I just wanted to share my opinion here

.
Hey Bjorn, does Mario64 really looks nice on the screen(s)? I saw the movies but not on the device itself

.