I agree areefer. GBA fans will most likely jump to DS without a second thought.
And to Blackknight131, yes the DS is more impressive once seen, touched, and played. Nintendo said it best when they gave away Those DS shirts to all DS attendees, the shirts read "See it, Touch it, Play it"
IMO, if PSP initial sales go well but the system turns out a dud, then Sony might lose some market share NextGen. Otherwise i feel Nintendo and Microsoft will still likely have a long ways to go to really even compete.
I predict though that with so many ppl now buying GCN for the $99 sale, alot of ppl have now seen what Nintendo is all about and NextGen we will see a vast improvement for Nintendo although probably not numero uno, more like Nintendo 40% share, Sony 50% share, and Microsoft 10% share IMO. Thats if DS goes well and PSP doesn't. And i base Microsoft at 10% only because i feel that if all systems released about the same start or at least without much advantage Microsoft would have trouble selling at all.
I mean think about all the great games coming to GCN late in the cycle. New (mature) Zelda, Metroid, RE4, Tales of Symphonia, Baten Kaitos, Fire Emblem, Paper Mario 2, Geist, Killer7, etc.