The current products use 6LoWPAN so you'll need their hub.
I'm in fact having a call with the company that made that hub next week to see if we can add support for it, just as we've done with the Hue hub.
From my understanding, TCP is moving to ZigBee though, but apart from some pre-announcements by Belkin, I haven't seen any news with regards to when they'll be available.