Open Voting

There has been some discussion regarding the software/hardware platform for electronic voting.
How could one go about creating a trustworthy platform for electronic voting based on commodity hardware?

Closed-source solutions create security through obscurity. An open source application (application chain) would be better, allowing security experts to critique and improve the application.

Could one create a LiveCD or installable distro for voting purposes?
Some ideas (all of these can be expanded to several man years):

• Allow the distro to verify its hardware/Bios, reinstall the Bios
• Allow the distro to check another CD.
• Run the computer with the voting software.
• Send the data to be aggregated.
• Publish the result.