I think it's great to have the one hour post editing time limit removed.
I like having posts which have been edited marked as such but it would be nice if we had a few minutes after making a post to edit it before the "edited" label is applied.
I'm not sure what the time limit in the previous forum was but I know we had several minutes (I'm guessing about ten) to edit a post prior to the post being labelled "edited."
I think a grace period to edit a post is even more important now that there's not a way to preview replies.
Of course this is a rather minor concern but I hadn't seen it mentioned.