Yes, this was something we even discussed last December in Barcelona, although at that time playback status tracking was not implemented. If you look closely at the bottom center of this photo, you'll see that we intended to have "cake" graphics for the playback status in the episode list. It's still on the radar, just not implemented yet. The MAFW integration in 2.8 does bring us a lot closer, as now nearly every gPodder user on the N900 should have their playback status tracked inside gPodder.