Video Window

first of all, congratulations again for this amazing software and it´s success. Now, I know the subject of synchronisation with video has been discussed before, and I know it´s not a top priority feature right now. But support for this would be so great that I can´t help asking again. Is there any news on this subject? I seem to remember from prior discussions that one possible approach would be to add full support for jack-transport (right now, just start-stop works), and then use Musesc. in sync. with xjadeo, as can be seen here:
(around 3:40)
http://www.youtube.com/watch?v=uUq4Hl2l2TY

(The attached picture shows another notation soft. doing this)

thx