Regarding exchanges after launch: are there some plans to use NXT MGW as exchange? If multisig will be ready, I think we need get rid off centralized exchanges and add NEM to MGW.
You mean NEM MGW?
It could be NEM MGW, of course. But there is working NXT MGW and I think 50% of Nemsters also using NXT.
I prefer to work on behalf NEM MGW rather than stuck with NXT... People who already had used NXT could have bought NEM from NX AE. This time it should be the opposite way.