I just published my App "AIMP Remote". AIMP Remote is a remote controlling app for the great media player "AIMP2" (http://www.aimp.ru).
The app uses the REST API of the aimp-web-ctl plugin ( http://code.google.com/p/aimp-web-ctl/ ).
It's still very basic, does not support playlists (will come soon), but already allows to control the player (play/pause/stop/prev/next), the volume and see what song's currently being played.
There's still a lot to do for me, so the app is explicitely a BETA. But if you use AIMP and like it, I'ld really appreciate your feedback if you try out my app
Here's the market link: market://search?q=pname:de.milksplash.aimpremote
And on AndroidPit: http://www.androidpit.com/en/android/market/apps/app/de.milksplash.aimpremote/AIMP-Remote-BETA