For music, the (relatively new) Google Music service works great on the Paladin. Google Music is available only in the USA, but there are ways of getting around that. After you have your Google Music account set up (you can upload 20,000 songs!), just install the app, and you can listen to all your music on the Paladin. The app I installed and works is here:
SugarSync works too, and streaming music is no problem, but the player is not that usable (and in a browser/on the PC it's nothing but terrible). I like Google Music a lot, and it's much nicer to use in the browser too!
I'd like to remind people that you have to sign up for the Google Music service first (and take certain measures if you're outside the U.S.).
Also note that the app won't 'work' right away - at least for me it didn't. By this I mean that once you've installed the app on your phone/tablet, it will only show locally stored music files. And there are no options to configure to make it connect to your Google (Music) account. But be patient, it'll "catch on" later. This happened both on my phone (Samsung Galaxy S) and on the Paladin.
So at first I thought it didn't work, but a few days later the app will suddenly change and ask which Google account you want to use. Then everything gets synced from the Google cloud and you can listen to your whole cloud music library.
So give it a few days, don't think it's not working and uninstall it! Funny that it takes so long (several days) to catch on, but it does.
So it streams correctly on the Paladin. That's nice! Is it because of Ingenics (?) relationship with Google? Because every china tablet I've tried so far, will not stream my cloud stored music correctly. When I chose a song and press play, it will not start playing the song before it has buffered that song 100%. Which sucks. Glad it works for the Paladin though. It would be interesting to find out why "all" china tabs have this silly problem with Google Music.
I have been using Google Music on my phone (Samsung Galaxy Spica) since it was available through invite, and it's awesome. 20 000 tracks that doesn't get converted to lossy quality.. quite unique
I'll try the apk you've uploaded later, on my teclast a10t, when I've got some more time. I can't really see why the Paladin would operate Google Music correctly, and all other china tablets I've tried, doesn't. Thats why I thought the answer lied with Google, at their end.