I will be kind and say that they are a pack of lies smeared with plausibility. Debka's goal is to goad America to attack Iran. They will say anything and are far beyond a disgrace, they are a news cartoon.
If that's "Debka's goal", they should understand that they will not achieve their goal until Hussein leaves office (Inshallah, 2012). While I do find Debka wildly speculative at times, the Saudis have in the past turned to the Pakistanis, the Brits, the Iraqis (under Saddam) and (of course) the US to assist them in times of external threat. It seems only natural for them to partner-up with the Egyptians against a possible (and if the Iranians develop some nukes, a probable) Iranian threat. Frankly, though, I don't see how that development (if true) would "goad" the US into attacking Iran. You may want to check some Egyptian and Saudi government sites before you reject this article out of hand.