Non-misinformed gulp browserify usage

gulpfile.js

'use strict';

var gulp = require('gulp');
var browserify = require('browserify');

gulp.task('js', function(){
  return browserify('./entry.js', { debug: true, transform: ['reactify']})
    .bundle().pipe(process.stdout);
});

gulpfile.output.js

'use strict';

var fs = require('fs');
var gulp = require('gulp');
var browserify = require('browserify');

gulp.task('js', function(){
  return browserify('./entry.js', { debug: true, transform: ['reactify']})
    .bundle().pipe(fs.createWriteStream('./bundle.js'));
});

any ideas on throwing watchify in the mix?