Yes - you just do
var debug = require("debug.js");
debug.listen(8080);
We'll be supporting more functionality later - like breakpoints.
(Everything that is available through the debugger protocol
http://code.google.com/p/v8/wiki/DebuggerProtocol) First we need to
have workers (the http server for the debugger needs to run in a
separate process because if a breakpoint is hit and it was in the same
process as your application, the server would stop too!)