Just as a follow-up to what's below, the more I think about this, the more I suspect the military leadership is seizing the opportunity to install Omar Suleiman now and forestall the possibility of a Gamal Mubarak presidency. It definitely will not be that easy. Many of the protest leaders have drawn lines that won't walk away from easily, but even if Suleiman can win temporary acceptance as a transitional leader, remaining regime elements can manipulate the system as they go. The two key pillars are economic corruption and foreign aid rent, and neither is incompatible with a period of greater political openness.
(Crossposted to American Footprints