NDC London starts tomorrow and SpecFlow is also there.
Christian Hassa has a talk together with Gojko Adzic about implementing the right thing on Thursday: How I Learned to Stop Worrying and Love Flexible Scope.
I will also talk on Friday about using Excel as executable specification with SpecFlow: BDD for financial calculations: Excel vs. Given-When-Then, or both? (You can check my related post.)
I hope to see you there!