I've still yet to see any open source alternative though. I mean, there are projects, but it seems they haven't actually developed anything to show and say "this could be an alternative, and it's secure!".
It's a chicken and the egg, but counties aren't going to throw away their contracted, and expensive voting machines until there's a real alternative that they can actually know will be available next voting cycle.
It's a crappy situation, but complaining it hasn't happened yet is not productive. Talk to your Senator, Congressman, etc. Except, of course, if they LIKE unverifiable voting. Then, umm, call your AG or THE National AG.