It will be interesting to see what questions they used to get the results they wanted. It looks like the stitch-up for a second referendum is firmly on.
As the economist points out today, although the biggest spontaneous answer from No voters about their choice is a lack of understanding, the biggest reasons from yes voters also indicate a lack of real understanding about the treaty – they are vague and reflect a general positive view of the EU rather than any particular attachment to the treaty itself.
Among the top (spontaneous) reasons for voting yes were:
I followed advice 22%
EU has been/is good for Ireland (unspecified) 20%
Treaty is good for Ireland (unspecified) 16%
Felt it was the right thing to do 14%
Feel European/am a supporter of European integration 8%
The difference, perhaps, is that Brussels feels that these rather general reasons for voting yes are "legitimate", but general reasons for voting no are not.