It needs further testing of course.
Download (just barely too big for attachment):
https://www.dropbox.com/s/qz7vvuwr42csjfe/gpg
Download, then do:
gunzip gpg.gz
chmod u+x gpg
./gpg --help
Cheat Sheet: http://irtfweb.ifa.hawaii.edu/~lockhart/gpg/gpg-cs.html
EDIT: Used PortableLinuxApps to make portable.
http://portablelinuxapps.org/
EDIT: If you wish for the settings to be stored in a portable manner, use the following:
* Download above file.
* Place it in a folder somewhere and make it executable
* Inside same folder create a new file called "launcher"
* Inside launcher file add the bash script that is in quotes below.
* Save and make executable
* Create a folder named "config"
* Launch it by doing: ./launcher appname
#!/bin/bash
PWD= `pwd`
chmod u+x "$1"
mkdir -p "$PWD/config/$1"
export HOME="$PWD/config/$1"
./$1