Surely any money going into FOSS technologies, be it $2.60 or $2.6MM, is good news for everyone involved?

I don't use Node.js - RoR is more my thing - but if this money allows the project to hire talent and increase the quality of the codebase and documentation, they're going to attract developers from other frameworks.

Even the die-hard supporters that refuse to budge, Node may develop new paradigms that can be ported over.

Investment in FOSS is a good thing, IMO. Just because it came from a VC shouldn't discredit its possibilities.