it is only on ipod touch.
You need to buy them off the internet on the iPod Touch.
It depends on what your style is. If you already have a DS or DS Lite but no iPod, go for the iPod Touch. If you already have an iPod but no DS or DS Lite, then go for the DSi.
Nintendo Ds is focused solely on gaming (minus pictochat), whereas if you get an ipod touch, you get lowered detailed games, but you also can have videos, music, and applications, my advice is if their/your younger get a ds, and if your older (teens) get them/you an ipod touch
Play games. Pictochat. That's about it. if ur thinkin of getting one don't get an IPod they are WAY better.The games are ALOT cheaper and there is more things to do on iPod.
If you already have a DS Lite, then there's virtually no point in getting a DSi. You should get an iPod Touch, since it already fulfills the DSi's main features (that aren't playing DS games) and more.
An iPod, a DS, DS games and a DS case :) and maybe a wii.
You cannot put anything from an iPod onto a Nintendo DS.
cell phone, Ipod, nintendo DS with games, camera.......ect.
This is a matter of opinion and mainly what you wish to use it for. Music and other forms of media are certainly superior on the Ipod. But that is simply because no model of the DS is really made for such. Games however the DS has a much larger library of professionally made games and has many popular titles. If you want a multimedia device with some decent games go with the Ipod touch if the games are your main reason for purchase than go with the DSi.
You'll have to buy an attachment to hook up to an iPod if you want to do that with your Nintendo DS.
where did my dad put my Nintendo ds and my iPod