I just looked this up on a co-workers 600 (I have the 350). It looks to me like the Pop is not in the POI list. Even the All-Star Movies is not listed but the other two All-Star resorts are listed. One thing to keep in mind, it can take a couple of years for some POIs to show up or be removed. Why these places are there or not there is anybody's guess.
Here is a way you can locate it:
1. Select "Where to?"
2. Press the down arrow
3. Select "Coordinates"
4. Select the "Format" option
5. Select the third option - h ddd.ddddd
6. Select "OK"
7. In the "N" field, select to change
8. Delete what is there
9. Enter 28.35044, select OK
10. In the "W" field, select to change
11. Delete what is there
12. Enter 81.5451, select OK
13. Select "Next"
14. On the Coordinates screen you can select "Show Map" to see the location, select "Save" to save the location with a name you supply or select "Go!" to get a route calculated.
Mention to your friend that they should download the GPS file from
MouseSavers (referenced above) and/or POI Factory to get all the Disney resorts and restaurants.
Interestingly enough I just tried to find the Pop on another co-workers Magellan Maestro and it was there. Like I said, go figure.