I saw the fingerprint scanners already a few weeks ago in Lowu, and now they are finally put into action.
Of course people line up as usual, and when they arrive top position they are told to go to a corner to scan their fingers (all). The scanning is then quite fast, and you start again at the end of the line. This time when in top position you need to scan both thumbs.
I guess this is now introduced at all borders.