Grin is an implementation of the Mimblewimble protocol. 100% open-source and community-driven. There's no ICO, no pre-mine, and no founder's reward. Repo at https://github.com/mimblewimble/grin and more info available at http://grin-tech.org/
Is this going to be livestreamed or recorded? I'm still looking at both this and BEAM and would love to learn more, but flying out to San Mateo for the day isn't viable for me right now.