My new script is now on CreativeCrash. I've been working on this one for a few monthes, restarted everything from scratch once.
This script stores poses and animations in XML format on your computer and lets you reuse them. You can download it here : http://www.creativecrash.com/maya/script/gf_bank
There is a detailled PDF document with the script.
This is the very first version, you may encounter some bugs. Any kind of feedback is highly appreciated. Critics, bug report, suggestions, anything that may help me improve this script.
More info : http://the-rigging-clown.blogspot.fr/p/download.html