I work with Embedded devices, often using Embedded Linux. My company is WorkWare Systems at http://www.workware.net.au/
I am a maintainer of Jim Tcl (http://jim.tcl.tk/ ), a reimplementation of Tcl which is ideally suited to embedded systems.
I have written a paper on using scripting in embedded devices (http://workware.net.au/papers/embedded-scripting.pdf )
EvilSon: Steve has also written Autosetup - which is a tool, similar to autoconf, to configure a build system for the appropriate environment, according to the system capabilities and the user-selected options. The config files are written in Tcl, and it can run with the Tcl or Jim interpreter. Very Cool in my opinion.