I would have said it's more focused on tightly customer development from my experience, despite the name. Of course, that's a part of lean startup methodology,

I would have said it's more focused on tightly customer development from my experience, despite the name. Of course, that's a part of lean startup methodology, but I tend to associated lean startup with many of the development techniques such as continuous deployment and rapid A/B testing which isn't necessarily feasible over the weekend (although I've seen some pull it off well.)