Open Source Voting System?

I hold this truth to be self evident - an electronic voting system can only be taken seriously if it can be inspected for flaws. It cannot rely on secrecy of code for its features. There is no confort in security-through-obscurity in something as important as democracy. Its security comes from the fact that everyone knows how it works - like PKI. The only way to truly inspect software is to have access to the code? Anyway, this looks interesting - voting software with an open licence.