I see via Peter Woit that a new preprint by John Morgan and Gang Tian has appeared on arXiv, Ricci Flow and the Poincare Conjecture, which claims to offer a complete proof of the Poincare Conjecture, based on Perelman’s sketch. Huai-Dong Cao and Xi-Ping Zhu’s proof of the complete Geometrization Conjecture has been published in the Asian Journal of Mathematics, and is now available online as A Complete Proof of the Poincaré and Geometrization Conjectures – Application of the Hamilton-Perelman theory of the Ricci flow.