As promised, the software is released under the GPL (v3) at http://arm7-oled-clock.googlecode.com/ (only available in a subversion repository right now).
A slight flaw was detected in the hardware design (schematics and pcb) in the last week that made it not work, so rather than release something that is known not working, I’m gonna fix it and then release. There is an easy workaround for the flaw, but no sense anyone printing boards that don’t work as-is. So the hardware design files are coming soon. Stay tuned.