Interesting... Then how are the coins originated? I will read.
All the coins were created upon inception, 1 billion for NXT, and were bought by 72 people that believed in the project and payed btc for it.
Some of them own 50 million coins, but most have sold a considerable amount already. Here you can see the top accounts:
http://87.230.14.1/nxt/nxt.cgi?action=34 There will be no new coins created, so no inflation. Miners are not miners but called forgers and do not mine for new coins but only validate transactions and secure the network, they are payed with the transaction fees that is currently 1 nxt per transaction.
Very likely transaction costs will remain very low compared to bitcoin because validating transactions and securing the network does not need any processing power, just coins and simple pc. Forgers therefore will bid up the price of coins if they want a bigger stake of the transaction fees, so the coin holders win instead of the asic companies.
NXT is still very early phase, you can only buy it at dgex.com and another much smaller exchange. This is because the code is brand new (in contrast to most other altcoins that are forks) and existing exchanges cannot easily implement the coin for trading.