Portable Audacity OS X is the Audacity audio editor packaged as portable application so you can carry around with you on any portable device, USB thumb drive, iPod, portable hard drive,memory card, other portable device (also on your internal hard disk) as long as it has 13.2 MB of free space and use on any Mac OS X computer, taking your preferences with you.
More infos and download:
http://www.freesmug.org/portableapps/audacity/
Change log: