now-vows.js

  var everyone = require("now").initialize(server.httpServer);
  
  everyone.connected(function() {
    var app = this.now;
    console.log(app);
    this.now.getVersion(function(version) {
      console.log("version is "+version);
    });

    vows.describe('The Good Things').addBatch({
      'App.NAMESPACE': {
        topic: function() {
          try {
            app.getVersion(this.callback);
          } catch (e) {
            console.log('Caught an error.');
            console.log(e);
          }
        },

        'is CohenTest': function(version) {
          assert.equal(version, 'CohenTest');
        }
      }
    }).run();
  });

working.js

// this works
everyone.connected(function() {
    this.now.getVersion(function(version) {
      console.log("version is "+version);
    });
});