Since September 2011, GMMP has been downloaded 100,312 times. Pretty crazy!
Development wise, the next update should be out in the next few days. It includes:
-Gesture recognition improvements for larger screen sizes
-Playing a folder with playlist shuffle enabled will now start at a random position instead of always the first track
-Added delete to artist, album, song, and genre views
-Fixed playback of multichannel (3-6) flac files
-Fixed AAC playback in 4.1
-MP3 and AAC are now decoded with OpenSL ES on 4.0+ (HE-AAC v1/v2 now supported)