While most talks delve into the kernel, or system level features of linux, there's also decent coverage of Performance, Security, Mobile, UI, Web Applications, and Green Computing. I'll be doing a tutorial on CVS and Bugzilla this Friday, and another on Yahoo! Pipes on Saturday.
If you're at the conference and you spot a guy wearing Yahoo! gear, come say hi. I might even have some swag if my luggage gets here in time.
Yahoo! Exceptional Performance