Node.js is part of webOS 2.0

The popular Node.js runtime environment is built into webOS 2.0, which means that you can now develop not just webOS apps but also services in JavaScript. The active Node ecosystem is on hand to provide community support and a rapidly growing library of modules that you can use in your webOS services.

Besides powering the new Synergy APIs, JavaScript services strengthen webOS’s support for background processing and add new capabilities–like low-level networking, file system access, and binary data processing–to the web technology stack.

Personally I haven’t done much with Node but this look pretty good.