The message says that he may be applying for a 'temporary asylum' in Russia till time is conducive for his travel to some Latin American country.
“I did not seek to sell U.S. secrets. I did not partner with any foreign government to guarantee my safety. (…) I ask for your assistance in requesting guarantees of safe passage from the relevant nations in securing my passage to Latin America as well as requesting asylum in Russia until such time as these states accede to law, and my legal travel is permitted.”
In the meantime, the Russian President Vladimir Putin has said Snowden must agree to stop leaking US intelligence secrets to be considered for asylum.