I have seen that. I was trying to stay away from beta versions. If it will be a while, then I may have to try it out.
Beta designation is pretty arbitrary - its mostly left up to the person doing the port. Some ports never get past being designated beta. And there certainly is no schedule.
Incidentally, you initially asked for an Alpha version - which in normally even less mature than a beta version.
In any case, you'll have to either try it out yourself or try to judge from the postings in the forum when its "good enough" to use.