Not to rain on your parade, but NXT TF will allow speeds like this as well.
Right. I'll believe it when I see it.
So far it looks like a very fragile and artificial construct (not to rain on your parade too

)
Anyway, with block time = 1 minute, you cannot achieve 1 sec transactions. TPS is not equal to confirmation speed.
The Reed-Solomon solution already solved darkNXT, AM encryption is already exists, etc.
These are all afterthought patches. I want to take lessons learned from NXT and apply them
to the design of the system.
The only claim I see noteworthy (at this time), is that every single client is a thin client? So there is no central ledger?
There are clients and there are nodes (servers). All clients are thin clients and they don't participate in supporting the network, thus lifting the O(n*n) burden and also freeing users from the need to download complete database.
It's similar to Ripple in this regard where a few powerful nodes serve all the clients. Except here anybody can run a server and it's not centralized.
So there will be like 200 or 1000 servers and they will handle all transactions and keep the ledger. And users will connect to them with thin clients.
I think BCNext vision was similar too and with web clients NXT will work the same way. It's inevitable, bitcoin's approach is not sustainable.