Can you please add some documentation for sourcemap and debugging to the doc?
WP 1's sourcemap doc is confusing as hell and WP 2's doc just copied that over. I imagine debugging un-transpiled code with sourcemap is one of the most common use-cases.
And I'm not alone if you look at the disqus of WP's doc[0] and a blog by @bebraw[1], one of the guys running webpack.js.org.
I even opened an issue[2], I hope it can make into your MVP.
[0]: http://survivejs.com/webpack/developing-with-webpack/enablin...
[1]: https://webpack.github.io/docs/configuration.html
[2]: https://github.com/webpack/webpack.js.org/issues/273