According to their pragmatic licensing guide, you likely can (depending on what you mean):
http://neo4j.org/licensing-guide/
It's fine for SaaS but if you want to redistribute your product then...
HN is weird sometimes. I don't really know any but a handful of the most profilic posters by handle. What I hope to see at LN is more of a focus on rational discussion without having to worry about who the poster is you're disagreeing with or whatever the group think of the week is.
For those also wondering, antirez's replied about templates in another post:
http://lamernews.com/comment/253/1
(I saw your post there romy so I know you already know just linking the two togethet, edit: whoops, missed the other reply :()