Documentation Development Tools Beat/ApplianceTools

Appliance Building Tools
Appliances are pre-installed and pre-configured system images. This package includes tools and meta-data that make it easier for ISVs, developers, OEMS, etc. to create and deploy virtual appliances. The two components of this feature are the ACT (Appliance Creation Tool) and the AOS (The Appliance Operating System). Install the  package with Add/Remove Software or   package. This package contains tools for building appliance images on Fedora based systems including derived distributions such as RHEL, CentOS, and others.

Appliance Operating System
The Appliance Operating System is a scaled down version of Fedora with a small footprint. It contains only the packages necessary to run an appliance. The hardware supported by this spin of Fedora would be limited, primarily focusing on virtual containers such as KVM and VMware. The goal is to create a base on which developers can build their applications, only pulling in packages that their software requires.

Resources
http://thincrust.net/ -- Appliance Tool Project Site