VolumeMC (Volume button Media Controls) allows you to change your volume buttons to external media controls. When enabled you use the volume up button to forward to the next song, and the down button to go to the previous song. If you arent listening to music then you can press either volume button to start playing a song, and if you want to pause a song then you quickly press the up then down button.
Does not work on 1st generation ipod touch.