I don't think I would consider the interactive section which is primarily made up of bloggers and web startups(and not focused on the tech they use) as a tech section. Bloggers are not tech oriented(unless they primarily write about some sort of new technology).
I went a few years ago for just the music festival and had a blast. Andrew W.K. showed up and did a scavenger hunt under a highway overpass. I had one of those expensive badges and found other badge holders were pretty nice. Chatted with someone from SOMAFM for a while.