Hello 8^) I see that audacity is already a portable linux app but, as a guitar player, it's not very much fun unless it is used in conjunction with Rakarrack (a guitar effects processor). How cool would that be? Turn any computer into your own Digital Audio Workstation! Just by plugging in a usb drive and a guitar into the mic input??!!! I'm kinda new to the concept of portable apps but, I also think it would be cool for user to be able take their own collection of customized, pre-set guitar effects...everywhere they went!
Here's a link to a song I recorded while using audacity and rakarrack together at the same time. Maybe, somebody might like it and get inspired to help

Anyhow, I think this is awesome! LPA Rocks! I was kinda glad to see rakarrack not in the list yet because, I got my first AppImage to work on! Peace and Thank you!
http://soundcloud.com/eric-payne-2/hall ... strumental