Subj. It have support for localizing in your plugins. I already start using it in my development, and it work such as ok... as far as me :))
I think that in nearest feature no new features will add in PLUS, only bug fixes. I start to write documentation "how to use it".
Also posted some screenshots and writen a little overview on:
Plugin can be dowloaded throught IDEA Plugin Manager or directly here http://plugins.intellij.net/plugins/view/?id=PLUS
Thanks, and hope that this staff will be helpfull for somebody :)
PS. If somebody have any words, espeacialy "reproach" words, i'll be very pleasant to know, that is no good currently in PLUS. So, if you have a little time for me, please write some blames! :)