Oracle's annual OpenWorld conference kicks off Sunday and is set to be the biggest one yet, both in attendance and information on future technologies that could have a major influence across the tech world. Here's a look at some of the hottest topics and happenings at the event, which runs through next Thursday in San Francisco.1. Hurd and hardwareOracle Co-President and former Hewlett-Packard CEO Mark Hurd will speak on Monday in his first major show appearance since being named to the post last week. Hurd, who is now in charge of sales, marketing and support for Oracle, is charged with selling the company's vision for systems that integrate software with servers and storage.