Since it seems to run contrary to what others are saying, I like the hex-inspired logo. It's much more distinct.

The graph is an actively-bad idea both visually and philosophically, unless they're really deeply committed to making Node actually work like that. It looks like it is claiming to support lots of internode cluster-type communication; as I understand it, it has no story except vague sketches here, and no matter what it will be a long time before that is the primary story Node has. There's a long row to hoe betwixt here and there.