Thanks for pointing out these DAG based efforts. For newbies like myself there's a good explainer video on Iota. Please see my post for that:
https://steemit.com/dag/@mdinnerstein/learning-iota-s-video-the-tangle-vs-blockchain-explained
I also recommend the terrific videos you'll find on Hashgraph's site This is another DAG based company.
Cheers!
Marcos