Seems that aside from just no WiFi access, the access that you can find is going to be attacked and your laptop turned in to someone's bot.
http://www.weeklystandard.com/blogs/nbc-all-visitors-sochi-olympics-immediately-hacked_778718.html
From everything I've read about Sochi - the stray dogs being rounded up and summarily slaughtered, the unfinished hotels for the athletes, the bathrooms with no separators, it seems that you would be better off staying at a KOA and camping with an extension cord and satellite internet.
So is anyone having to support their mobile workforce in Sochi?