gr8craft - Walking Skeleton

Unfortunately I missed Franziska's session at SoCraTes 2015 on this topic, but fortunately she wrote about it, make sure to also read through her commits backwards, of course :). Very nice and readable! An article "Kickstart your next project with a Walking Skeleton" she referred to, that explains the process too. While reading more and more of the [c2 wiki] I am asking myself where is the difference to a spike which Kent Beck defined as

a spike is "end to end, but very thin", like driving a spike all the way through a log

Looks like this is very much the same, isn't it?