I have the N2.5(did the chip so its and N3 now) and I want to get the N4. I already have the 80 gig Ipod with the interface for the N3. I know that the N4 does not use the same interface. Will it? I would like to be able to plug in my iphone and my ipod. Can I use the direct cable for the ipod and the I pod interface for the iphone?

Nope, your ipod adaptor doesn't work with the N4

so do we have a way to hook up 2 ipods so that they can both be controlled?

No. But you could put all your music on the 80 gig, and use the bluetooth for phone function on your iphone

You could just get the red/white RCA inputs and hook up one of your ipods that way.

you could also find a cd-rb20 and use a 2.5mm jack to rca adapter like i used to use before i got my ipod adapter. i made up a 2.5 jack for mine so if a friend ets in with something other than an ipod, like a zune or whatever they can plug and we can play, that way your av inputs are stilll free to use in your playstation, xbox, laptop whatever you use it for.