follow the irc chat log , every day there is news:
http://tauchain.org/logs/fn/%23%23idni.log
Now the team is working on the contens to explain tauchain for all people.
You can see a snake  peek of the website. Ohad is learning more maths and coding the core. Some colaborators give him a lot of good papers to research and do a better product. The videos dont will be ready till the content to explain tauchain is ready , its need this content to show tauchain comprehensible to all
This small things take a lot of time, it is very important to tauchain success.