Yes, there is a Vine client planned for Harmattan, knobtviker is on this, but development cicle is to finnish first Whine, the Vine client for BlackBerry 10, and then make a port for Nokia N9.
You can follow the development in his twitter and in the Crackberry forums
You can follow the development in his twitter and in the Crackberry forums
Adrian Filgueira, @hariainm