If you are interested there is already a tread in general discussion. We have to try to do not replicate discusssion over and over in the forum.
If you are interested to have it as package I think you should try to make it yourself unless it was already made by someone.
Y is too far to be stalble in order to be included in archlinux as a package, so I realy dubt that developer spend time on it.
All you can do with Y is using a calc, watching a clock or emulate a shell. You really don't want to use it (yet). Imho alternative X implemetations are more worth looking to.