In a special edition of "Jon and Den's digital dump," Jon and Den of diginomica.com break down three days of SAP TechEd Las Vegas. The guys assess the keynotes, the pros and cons of SAP's S/4HANA strategy, and whether the "digital core" approach is going to work. Will the "customer engagement" play work against CRM rivals? The guys also kick around SAP's progress on developer engagement, and give a final review.