I know any system with touch screen abilities. But remember kiddies, Playing is good, Touching is bad.
You do know you can play online with the PSP? Straight out of the box. On release date there will already be GAMES with online capability. So what is your point on the whole LAN thing?
Why would you want the DS for gaming, when the PSP has better graphics, and better games? I mean, c'mon, where's the sense in that?
Let's tackle the whole "backwards capabilities". How can a system that is the first in it's line be backwards capable? Think people, don't use a reason that can't be used to argue the PSP.
And on the whole LAN subject, Sony said they are hoping to have online capabilities where the PSP can play online with the PS3. Wow, pretty impressive if you ask me.
Dual screens is pointless. The best use I can think of for it is to have the game play on one screen and the map on the other. But seriously, most players pause the screen if they need to look at a map the size of the screen, because who would want to lose even 4 seconds of unpaused playing time? In alot of games that could be the difference between win and lose, especially fast paced games or games like Ratchet and Clank were you must battle lots of enemies.
I can sum up MOST of your argument with this:
"The PSP can do more than the DS. The DS can only play games so it's better."
To "burn" the PSP again, all you need is a portable or in-car DVD/CD player and/or a CD player to get your entertainment needs on the go. All you'd need from there is a DS. You can do it all at the same time!
Ok, so carry around 2-3 expensive electronics as opposed to just 1? Right. That makes alot of sense, doesn't it? An IN CAR DVD/CD player? Ok, what about at school? WALKING((or anything that isn't driving)).
How about getting better arguments against the PSP? I keep PWNing these Nintendo Fan Boys, and GOD I LOVE IT!
EDIT: Sorry, HAD to add this after Skyline PMed me about this topic.
To all those Nintendo Fan Boys. You have been royally served a fresh plate of PWN. How does it taste?