Postbox does everything he mentioned, and has for quite some time. It might behoove this guy to do some due diligence in the space, or maybe take time to explain how his designs are better than current apps.

Also, while his designs look "nice", they are over-designed and would start looking stale very quickly. When you're building a product that is used on a daily basis, less "design" is more. But I'm sure as a result of this post, he'll find some clients and make some money from it, so good for him.