At the moment, yes. I don’t know if @james has other intentions for them or not.
At the moment, nope! The reasoning behind normal glass not being chiselable(you can make some real odd and downright broken-looking shapes because of the lack of texture in the middle of the block and it could be confusing to interact with) still stands and I don’t currently have plans to change that block design.
Thanks for all the kind words and excitement!