I'm not a huge fan of Puppy Linux, but it does have its place in the Linux world. In my opinion they have strayed too far from the standards of where config files and binaries are located on other distros.
Regardless of the above feelings, a new Puppy Linux distro has been created called Digipup. Digipup is designed for use by Ham Radio ethusiasts. The great advantage of this method of doing things, is it takes up very little space. A person could have the entire distribution installed on a cheap USB “thumb-drive”, which can be transported with extreme easy and durability.