I'd really like an app that allows you to listen to a podcast / audiobook and music at the same time. As in, an app I could use to play a JUNK podcast while having the option to add music from my music library to it.
I have a ton of instrumental music, and it'd make podcasts / audiobooks that much more interesting if I could listen to both simultaneously. I've yet to find a single app that could do that well, though (using the iPhone's app store).
The app "djay" works for this, in a way. It allows you to select two different tracks (podcasts included) from your library and play them simultaneously, but playback ends when the tracks are over; they don't segue into the next songs on whatever playlist you've chosen. Instead, you have to manually select two songs from your library every time.. which is extremely inconvenient.
I'm not sure if I've explained this very well, as it's 2:00 A.M. and I'm sleepy, but in any case I'd be willing to pay around ten dollars for an app that could competently do this, lol. Simultaneous podcast/audiobook + music playback doesn't sound like the most difficult thing to program, but then again I have no idea. The iPhone could have weird restrictions on it.
If I had an app like this, it would lead me to listen to around five times as much Japanese as I currently do, if not more. So yeah.. I'd really appreciate it