I believe that you will need the 40-pin to ZIF adapter in addition to the SSD (there's a few links on the last few pages of this thread) (if this is incorrect, someone please correct me), and you also would need to extract the bare drive from the retail case on the outside for it to fit inside your iPod.
Also, from reading on the website the drive operates on either 3.3V or 5.0V, so I would imagine that you'll be O.K. on that front, only way to know for sure is to try it out and see if it works.
Edit: What size is your iPod? If it's the fat one, you don't need to remove the external casing, but if it is thinner, you do need to take it off otherwise I don't think it will fit inside.
Edited by Achyllis - 4/17/13 at 4:04pm