What version of NXT code you plan to use to start the development?
I ask this because currently in the NEM codebase there are 2 older versions of NXT
code which contained some flaws.
The flaws have been removed by JeanLuc and the NXT code was refactored since version 0.6.x and 0.7.x.
The latest version of NXT is 0.7.2.
It seem they found another issue with the current version as well
https://bitcointalk.org/index.php?topic=345619.msg5039691#msg5039691Our initial plan was to base NEM on the NXT
code, which is why there are two versions of the NXT code in the repository. However, this project garnered a really large amount of interest and we have more dev resources than I expected. At this time, it is the consensus of the dev team to base NEM on some of the NXT
ideas but write the code from scratch. While this will take a little more time and effort now, I think it will set up NEM much better in the long run.
The goal is not for NEM to be a NXT copy and paste coin. IMO, there's no value in that. With NEM, we want to take some of the best ideas of NXT and Bitcoin and create something new and, hopefully, better.
2) will NEM have similar JSON web api like NXT has, I mean will have the similar concept
of accessing the api over http https protocols?
Yes. The document specifies a rough API, with the caveat that the API will definitely be iterated on during the development process. The one big difference in the NEM API versus the NXT API is that NEM will infer intent from the URL whereas NXT infers intent from the type field in the input object.