Could somebody or a group who needed privacy implement a ground floor system like Menuet OS [1] or KolibriOS [2] running some sort of EC cryptography, and custom communication protocols off of a live CD or USB stick.

Would this even be practical? I realize TAILS is an attempt at bringing these tools to as many people who may not be technical, but for a smaller, more tech-saavy group, would this work?

[1] http://www.menuetos.net/

[2] http://kolibrios.org/en/