The app was web-based, not an actual mobile app, confusing some volunteers. It used an HTTPS connection and volunteers who tried to reach it by an HTTP URL werent automatically redirected. Landing on a blank page, many users took it as a sign the system was down
Denial of service at that ip would cause this, In fact that is what comcast reported that day in one of the articles. Where did that come form? I would love to have the ip number.
Therefore, if reading your information correctly, the Romney campaign site was doomed from the start. Compromised.