Yes, here at gnusocial.net we've using 2.0-dev since january. Besides, in https://fediverse.network/gnusocial (whenever statistics are available, right now they aren't) you can find a list of GS 2.0-dev nodes. From the top of my head, loadaverage.org, gnusocial.hatthieves.es... You can find updated info in https://gnusocial.network/ @xaloc @lohang
@diogo @dalme in fact, gnusocial.info it's only a redirection easy to remember than https://gnusocial.network I suppose Dalme knows the repository, I don't.
Do you want to improve the site https://gnusocial.network ? Now you can contribute through git! !empoderandogs https://gitlab.com/DalmeGNU/gnusocial.network