It's just in doing so, it will erase on whatever is on it from the laptop to put content from the desktop.
Hi, I registred and sync my iPod Touch 2G with my laptop iTunes, now, I try to Sync it with my desktop, but I can't, because it says than an iPod can only Sync with one iTunes. Can I "unsync" it from my laptop, to make it able to Sync with my daktop? Thanks in advance.

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic