Hamdeen Sabahi, who came third in the first round of the presidential election, surfs the crowds gathered to protest the Mubarak trial verdict.
Found through Betsy Hiel — we don't know who the photographer is. (Update: Reader Tine Lavent writes in - "According to al Masry al Youm photographer Virginie Nguyen, the photo of Hamdeen Sabahi was taken by Mohammed Salem for REUTERS.")
I also love this one by Hossam El-Hamalawy, which is actually from last September, but very a propos. The sign says, "Down with the next president."