World Scape radio is fixed. You cannot carry it anywhere you go. Whereas. IPOD is a portable music player and will also become a video played if you buy the IPOD Video. In World Space you get music but in IPOD you will have to get music yourself.
The choice is entirely yours. You have to decide. You want portability or a fixed radio.
PS. You will have to get speakers with Wrld Space.
BTW is it supposed to be in this section?