Here is a Linux user seeking for a Linux version. Ubuntu 12.04 LTS.
Having a Linux Procaster version, I could create an extra partition on my laptop with a dedicated Linux install, very light and with no frills, dedicated to Livestreaming, instead of having a Windows Procaster going 100% while services from other applications simply start polling for other non connected devices...
A Linux Procaster would open a brand new experience. Waiting for it.