I just saw a broadcast of the London Marathon (I only caught the last 10km), and all that I have to say about Rutto is.....HOLY COW.
Okayo and Korir looked like they were working fairly hard, but Rutto's stride is smooth as Thai silk. Given the turns, cobblestones and bad weather at London, I personally predict a sub 2;04 for Rutto this year or next.
I think that the Kenyan Federation is just plain nuttz not to put him on their team for Athens.