I just returned from the HR Tech conference in Vegas last week. It was amazing. I spent 3 days wandering through the exhibit hall filled with huge players like Oracle, Microsoft, Google, IBM, ADP, and industry standards including Cornerstone, Indeed, SAP, and Monster. All the ATS were there. And like always there were a ton of startups hawking new innovations in payroll, benefits, job boards, AI, candidate selection machine learning, and more more. This was by far the biggest and most exiting HR Tech I’ve attended. What was the common theme with all these exhibitors? Mobile. It…