i asked them the same via their facebook page:
https://www.facebook.com/NotionInkDesignLabs
they replied positive:
Hi .., "Yes it is one of the tablets from our business division."
So i guess this belongs to NI, but its not their Adam 2(with the external mini display)
Still the surprising part is there is no mention of this tablet on their Facebook/twitter/conclave sites or elsewhere too.