1) Dan O'Riordan presents on IBM Bluemix, a platform as a service that allows developers to build, deploy and manage applications.
2) Bluemix is built on SoftLayer infrastructure as a service and provides services for mobile, internet of things, analytics, and more through APIs.
3) The presentation demonstrates connecting an ECG monitor to an Android phone, sending the data to Bluemix services like Cloudant database and Node-RED for processing and analytics.