I was also trying to find some data on the price-development , is it on coinmarketcap or any similliar site ?
Is iota the asset jinn on nxt asset exchange and if it is how many jinn shares are one iota ?
JINN assets could be traded for IOTA during the crowdsale, however JINN assets are not tradable for IOTA now
you can find more informationa about that that in the IOTA crodsale thread here on bitcointalk
or on https://www.tangle.ninja/iota/crowdsale
there is a guy that created a currency on the monetary system of NXT, called KIOTA if i remember correctly,
basically he is just trading his IOTA bought during the crowdsale in exchange for NXT,
but i cant say anything as to how trustworthy he is, so yeah....due diligence and all, you know the crypto space.
last price for KIOTA was 350 NXT for 1000 IOTA, that would evaluate IOTA at a marketcap of 349999999 NXT or 7756 BTC or 2,792,159 USD
Concerning your first question I cant give a clear answer to this, beta is sheduled for this weekend tough, we will see what happens after that.
Hope this helps