If you really want a binary of the gmplauncher that shows amr files, I can post it up but it's pretty restricting. You cannot pause from it, you cannot change the mplayer volume ( setting volume from the top applet works though) , maemo comes up and says that it isn't responding (i find it best to leave this on the screen) and if you kill gmplauncher while a book is still playing, you have to "kiilall mplayer" anyway. Still tempted?