So you want to delete old podcast episodes from your iPad without wasting a half hour of your time synching up? Here's how:
1) Open the iPod app and locate the podcast that you would like to delete.
2) Swipe once from left to right on the podcast entry you would like to delete.
3) Press the red delete button next to the podcast.
4) Do the power user funky chicken dance.
-- Posted from my big ass iPod