In case you missed it, the 2016 Esri UC Q&A is now live. The Q&A is a great way to get up to speed about the latest enhancements to Esri's technology, trends in your industry, and the road ahead. There's even a section with information about UC and some of the major themes and ideas you can expect to experience in San Diego.
The Q&A is available online or as a PDF. Check it out.