A folder named "iPod Photo Cache" appeared on my desktop

I just noticed an new folder on my desktop. It contains 3.56 GB for 5334 items per Command-I. iPhoto tells me I have 5,395 photos in it, so these numbers might be related.

A cursory peek at its files revealed nothing Icould understand. I don't own an iPod (although I do own an iPhone.)

I did invoke an app named "Invisibility Toggler" a couple of days ago. It makes invisible files visible until you run it again. But I've run it before and noticed no anomalies. I'm grasping at straws here.

Do you know what might be the purpose of this folder and where it is supposed to go?

--Gil