If you want a taste of the hot topics at this week’s LinuxWorld conference in San Francisco, check out some of the video highlights below.

Telecom backs mobile Linux

ZDNet correspondent Sumi Das talks with Senior Editor Sam Diaz about one of the big themes at this year’s LinuxWorld Expo–mobility. Diaz discusses how large companies like Motorola are encouraging Linux developers to write software for mobile devices. Watch the video.

Oracle CIO discusses green plans for new data center

Oracle CIO Mark Sunday explains the techniques behind Project Sequoia, the company’s new data center in Utah. By utilizing outside air, hot aisle containment, and independently controlled supercells, he says this will be its most efficient center yet. Watch the video.

Cisco defines data center 3.0

Cisco general manager, Rajiv Ramaswami talks about the history of the data center. He also discusses new technologies driving data center innovation including on-demand provisioning, the deployment of SOA, and Web 2.0 solutions.

Deploying healthcare apps on Linux

McKesson CIO Randal Spratt explains why his company deploys its health care applications on Linux. He says these applications are scalable, affordable on tight hospital budgets, and reliable–making better patient care possible. Watch the video.

Bringing cloud computing to the enterprise

Jeffrey Birnbaum, managing director and chief technology architect at Merrill Lynch, speaks about using cloud computing to reduce the complexities and costs of financial services. He discusses the move away from dedicated machines and why old ideas like virtualization have become useful again. Watch the video.