I still think Wayne Madsen is not a nut, and that's why I have to give some credence to this well researched, and highly suggestive albeit not dispositive piece of reporting: Texas to Florida: White House-linked clandestine operation paid for “vote switching” software:
An exhaustive investigation has turned up a link between current Florida Republican Representative Tom Feeney, a customized Windows-based program to suppress Democratic votes on touch screen voting machines, a Florida computer services company with whom Feeney worked as a general counsel and registered lobbyist while he was Speaker of the Florida House of Representatives, and top level officials of the Bush administration.
According to a notarized affidavit signed by Clint Curtis, while he was employed by the NASA Kennedy Space Center contractor, Yang Enterprises, Inc., during 2000, Feeney solicited him to write a program to “control the vote.” At the time, Curtis was of the opinion that the program was to be used for preventing fraud in the in the 2002 election in Palm Beach County, Florida. His mind was changed, however, when the true intentions of Feeney became clear: the computer program was going to be used to suppress the Democratic vote in counties with large Democratic registrations.
According to Curtis, Feeney and other top brass at Yang Enterprises, a company located in a three-story building in Oviedo, Florida, wanted the prototype written in Visual Basic 5 (VB.5) in Microsoft Windows and the end-product designed to be portable across different Unix-based vote tabulation systems and to be “undetectable” to voters and election supervisors.
I just hope he's wrong — and I worry that the same hope may cause other people to dismiss this one out of hand rather then trying to find out where the facts lead.