ReSlice - Slice your audio with an advanced, rhythmic arpeggiator and FX.
Until AM - DJ in your browser with this SoundCloud music mixer
cassini - Polyphonic Synthesizer for iPhone/iPod touch
Songlio - Free musical guessing game: race friends to name that tune
nlog Synth - Professional Virtual Analogue Synthesizer ::: check nlogmusic at YouTube :::
Playlistify - Make Spotify playlists from 1001tracklists & setlist.fm sets