The immediate problem is that you need to send a huge number of neutrinos to be able to detect anything, so cost and bandwidth are prohibitive. In the proof of

The immediate problem is that you need to send a huge number of neutrinos to be able to detect anything, so cost and bandwidth are prohibitive. In the proof of concept cited in your link, the experimenters used a 120 GeV beam to send a 0.1 bits/sec signal. (http://arxiv.org/abs/1203.2847 http://arxiv.org/abs/1203.2847)