Pelago has released new Linahammar cargo bike. It is handmade in Finland by famous builder Olli Erkkilä, wooden parts are made by Tebian. It seems suitable for carrying cargo and kid(s). It is said to be "The most maneuverable cargo bike out there.", well... words, words, words.
Anyway, concept is excellent, I'm sure that it is well made. Nexus 8 speed rear hub, in front there is a disc brake to guarantee fanatic braking. Optional wooden parts to make it suitable to your life's situation. Check out the pictures stolen from Pelago website.