Nintendo and Sony still haven't show their big guns yet.
NINTENDO Web browser based on Opera desktop technology.
Maybe they also expand the size of DS's game card (to 4Gigabit=512MegaByte?),
4 games from Square Enix (Children of Mana, FF3, FF:CC, Archaic Sealed Heat from Mistwalker)
Don't forget the upcoming DS killer app,Pokemon Pearl and Diamond (MMORPG!?)
Sony New firmware will offer more function.
Good original games are comming slowly but certainly increasing.
Connectivity with PS3.
Will Sony unlocks the CPU lock and unleashes the real power of the 300MHz CPU
(currently locked at 233MHz to save power)
the "7th generation handheld console war" is far from over. Both handheld consoles have yet to show their full capabilities.