I had dvr'd the Into The Universe with Stephen Hawking: Time Travel
episode. I had to go back and re-watch things a few times to try and understand. This article hits a few of the highlights: http://www.dailymail.co.uk/home/moslive/article-1269288/STEPHEN-HAWKING-How-build-time-machine.html
Here's his show site: http://dsc.discovery.com/tv/stephen-hawking/
Hawking stated, in essence, that time travel to the past is not possible due to feedback. This and his invitation to time travelers for a party that took place 06/28/2009 that no one attended, were his only theories against.http://www.youtube.com/watch?v=elah3i_WiFI
Contrarily, try googling "coordinates time travel party".
He did think travel to the future is possible. Future travel clears up any paradox issues, which are bizarre in the first place. An early point made but not demonstrated well, was the idea that time travels slower next to things of greater mass.
One idea for future travel was a train that circled the earth, seven times a second, getting as close to c as possible. One week equaled x amount of years.
The others involved space ships. Either circling a black hole and coming back or traveling a long way out, approaching c and coming back.
To your fine article; if someone were able to make the neutrino a carrier for data, we could send data to the future. Maybe way dude, way into the future. I think the worst part would be that they could not reply back.