As Openlog mounts same chip of Arduino board, why not to set up a standalone version of the firmware to log just from analog/digital pins rather than serial? It would be a very cheap and compact logger.
Thanks for the feedback. Since the Logomatic product covered the multiple input side of things (http://www.sparkfun.com/products/8627) I decided to focus on simple with OpenLog. It may be time to revisit Logomatic and make it easier/simpler like OpenLog. It would be a different, larger product.