Google listen - how to trigger downoads?

[starbase1]

I gave Google Listen a go, and it seemed fairly useful - found stuff well, and worked nicely as a player. I like the way it remembers where I was in a podcast when I return.

I'm struggling to understand how to control what and when it downloads though.

Is there a way to tell it 'go and get all new podcsts I am subscribed to now'? I'd like to do this at home, when wifi connected, before I leave...

Cheers,
Nick