Yeah.. that's part of it. Also things like the download dialog box or other pop-up windows from your (or others') applications stealing focus too. I'm pretty sure that there's only so much you can do, though, but it's a concern with multitasking touchscreen applications that depend on gestures. A general concern.

On thinking about this while using gpodder recently.. I started to reconsider whether it's a good idea. I think kinetic scrolling is a good idea, absolutely, and should continue to be implemented. It saves a LOT of space and it's a good interface for a touch-screen scrolling method.

But!... I do think that gestures might not work well for a bunch of reasons, now. If you DO implement it, be sure to put a toggle so that users can choose to enable or disable that functionality. My big concern goes back to the pop-ups and also the idea that it might not be as accessible to some people if it's forced on users (ie: users who might not be very precise or patient).

But!!... I also started looking at the real-estate being used by the icons for the music note/trashcan/star spot and wondered if, instead of a music note--you replaced it with a PLAY button on new podcasts, that would be intuitive enough.. and if a user tapped to the right of the icon (the episode list beside the icons) would bring up the old menu of choices. (This would be in addition to the gestures, not as a replacement). It would allow for a quick and much more intuitive way to immediately play a podcast and can free up the toolbar area if the user prefers to not have a toolbar at all (as I do.. I need all my screen real-estate).