Cheers
One NEMStake token on the NXT AE queals 1 Mio NEM yes. Since we haven't decided yet what happens with unclaimed stakes it might even be more.
The NEM price will decouple from NXT as soon as we are traded on exchanges. It's currently coupled because we're only traded on the NXT AE and havent launched yet.
Welcome
RelaxedSense was right, anyone can buy NEMstake with bitcoin through the SAE (Secure Asset Exchange). Welsey has worked closely in setting it up.
More info on SAE >>>> https://nxtforum.org/secure-asset-exchange/introduction-to-secure-asset-exchange/
SAE Site for NEM >>>> https://trade.secureae.com/#12465186738101000735
Also if jaguar, gimre et al implement multisignature in NEM then it will be possible to set up NEM/[Other Coin] Universal Multigateway exchanges. You just need 3 technical and trusted NEMsters to run the servers. This is cutting out the middlemen of Mintpal, Bittrex etc in an almost decentralised way.
More on uMGW >>>> https://nxtforum.org/nxtservices-releases/umgw-release-of-universal-mgw-daemon/
Good to know and thanks for the info.