What made me buy a Dingoo in the first place is that it can play games as well as being a "small enough to my pocket" MP3 player, but something has really bothered me since I got it. I don't know if it is the right place to talk about it, but here we go: there should be an option to create customized playlists, be it on Dingux or the native firmware. I know the Dingux music player (the one in Toddler's pack) sort of does it, but it is really tricky IMO, and does not access the music on the Dingoo internal memory.
It would also solve the problem of the bunch of WAV files that start showing off on the automatic playlists after you put Dingux on the miniSD slot, since you could create a list that excludes them... Is there anybody working on it?
I believe it must be possible, since I had a really crappy "MP5 Player" before I got the Dingoo, and even that could do it... If I knew something about programming, that's what I'd try to do, but since I'm clueless about it...