Citrix Systems wants to manage desktops and mobile devices with the latest version of XenMobile, and is also working on making it easier for XenApp users to upgrade. Citrix is this week gathering employees, partners and customers for the company's most important event, the Synergy conference in Los Angeles. The main theme this year is Citrix's continued efforts to let users access data and apps on any device, and let the IT department manage and secure all of it, according to Matt Morgan, vice president of corporate product marketing management at Citrix.