Is South by Southwest Still Relevant to Tech?

South by Southwest is wrapping up, and in the past few years what started as a music festival has morphed into the place to launch tech products. But this year there wasn't a lot of buzz, so I wanted to know if that's still the case. I posed the question to Steve Henn, who was in Austin. He's a tech reporter and co-founder of 60dB, a podcast and personalized radio app.