OpenPilot.collection provides a set of recipes and images to get the gumstix overo up and running with the caspa camera and openpilot Revo. As of now, the caspa integration has been fully tested and the openpilot spi_server has been included, but not tested.  The SPI server is the fruits of J. Cotton's efforts over at OpenPilot. I have a static version of his spi server I pulled off of his github account currently included. Depending on his wishes, I may convert the static version to a meta version that will auto update from his code.