yes
Sadly no.
Skype!
if you have an ipod 4g get skype app on your ipod 4g the make an a account and then get skype on a laptop and make an account and send a request to each other and there u can vidoe chat through laptop or ipod 4g
FaceTime on the iPod Touch is using the camera on the iPod to have a video chat with another person with FaceTime for the iPod Touch or iPhone. You must have a Wi-Fi connection to initiate FaceTime, and the receiver also must have a Wi-Fi connection (or 3G connection for iPhones). It is good if you want to chat face-to-face without really being face-to-face.
laptop Ipod touch
Unless you tell the ipod or laptop to deleate them no.
It should have come with a cord. One end will plug into your iPod and the other will plug in to you laptop.
laptop
if you have downloaded the itunes back. you have convert the itunes to the format ipod nano supported.
Yes you can. The Same way as Computer-Computer or iPod-iPod!
No, you don't have to keep the songs on your laptop. Once the songs are on your ipod you don't need the ones on your laptop.
Yes you can take pictures on the ipod touch 4 as it has two cameras, one on the back with a lower resolution camera on the front for video chat and photographing your own face.