A proof of Riemann hypothesis by Xian-Jin Li was posted on arxiv.
I believe it is quite possible he proved the Reimann hypothesis. Even though is possible he made a mistake somewhere in the paper.
Xian-Jin Li is a real mathematician who stated Li's criterion.
Let's see how this goes, can't wait.
At the same time, screw those Chinese dudes create mathematical propaganda in the Chinese community. For example, Chun-Xuan Jiang[蒋春暄] and his evil math papers(look at the ones about Fermat or Reimann). This person, along with countless other math noobs goes around many Chinese forums and post complete rubbish in very professional style, most of these noobs claim to "Prove/Disprove Reimann hypothesis and Fermat's last theorem in less than 10 lines" or show that "There is no such thing as the smallest positive integer". Jiang even get on a TV show and telling people no one can say he is wrong because he is in such a high math level, no one understand what he is doing. Now I have completely lost all my respect for any Chinese media. China should concentrate their resources on stopping these kind of crap before censorship, because more and more people actually believe crap like this, Jiang have published his own book(That's what he claimed). They are killing the future of China! I think Martin Huxley's reply to Jiang said it best.

but anyway...
I only cared about 5 problem in mathematics when I was a young age
Fermat's last theorem [Tackled]
Reimann hypothesis [Come on, Li, make the world proud]
Integer factorization in polynomial time [If there is a quantum computer]
Goldbach's conjecture
P versus NP

It I hope I can live to see all of those problem solved.

Update: Terence Tao said there is an error in the proof.