Where are my Google Listen podcasts I sometimes want to export a downloaded podcast to my computer, but I've yet to find the location where Google Listen stores them.  Does anyone know?
It downloads them to your SD card. 

I don't use Google Listen but I installed it and downloaded a podcast. It put it in:

/sdcard/com.google.android.apps.listen/downloads 


The name of the file might be something odd so you might need to rename them but that's where they are all located.