>IOATA and their overrun nodes
IOTA is a Tangle, which is coordinated flow, similar to a Directed Acyclic Graph. I'm not sure what you mean when you say "overrun nodes" but by virtue of how the network operates, this should not be an issue unless everyone is sticking with only the default nodes in their configuration, but that delves into a conversation of programmer vs user error that isn't pertinent to this thread. Some of us choose to run full nodes without incurring any speed loss, and it doesn't seem to be much of an issue of not having enough of them, only that people aren't using them. Even still, this has not degraded network performance.
What is IOTA?
IOTA actually seems pretty revolutionary. I don't think it's a finished product yet but if you want some info then it's a DAG ("tangle") instead of a blockchain and offers 0 fees and possibly huge scalability. There are some products already using it: RuuviTag, Bosh XDK Iot, PoC ElaadNL charging station, Modum. Once they prove they can go without the "Coordinator" I'm going to be completely sold on the project.
Might be worth learning about DAG, Tangle and IOTA too, here is their latest whitepaper: https://iota.org/IOTA_Whitepaper.pdf
The reason some ICOs release a white paper in LaTeX is that there is often a lot of math to be written out. Take for example IOTA's white paper: https://iota.org/IOTA_Whitepaper.pdf
Often, it's easy to spot the ones that are doing the faux-academic thing.
Here's the related white paper: https://iota.org/IOTA_Whitepaper.pdf
Website is here: https://iota.org