Sure you go to Linux expos such as SCALE to sharpen your coding skills and to learn about how to get your hands dirty going under the hood with you favorite open source applications. You might even go to learn a little bit about the business of open source. But you have to admit that an added attraction is just getting to see presentations from FOSS rock stars, the well known movers and shakers who have taken a big part in shaping the past, present and future of free and open source software. These are people whose presentations you’ll be tempted to attend no matter what the subject because…well, just because. Some of these are legends; some are not. But they’re all rock stars.