Dev,
Any further development plan,such as GUI wallet??

Its all pretty quick to implement, I am just holding back till block explorer is available,which is taking a detrimentally long time. So for now I am purposefully keeping it a little bit harder using CLI
There are 4 opensource options out there, that require minor alterations to be used with any CryptoNote coin. No cryptoNote coin that has a fully open source GUI refers to it as their official GUI. I have pm'd GUI creators and had discussions with them, I just ask that one is patient in terms of GUI.
It does not help to make things to attractive if you cant get on an exchange.