In for one.
There are not a lot of 3rd party Motion Plus devices floating around. A quick check of DealExtreme.com only shows what appears to be one, in black and white, and it has an odd switch on it. The pics on Daily steal are pics of the official Nintendo Motion Plus and the official Nintendo sleeve. While that doesn't prove anything, I'm willing to take the risk, and I am crazy cheap.
Also, if Nintendo is finally playing catch-up to Nyko and doing a Wiimote with built-in Motion Plus, then I imagine they need to start cleaning out the warehouse. That would also explain all the bundle pack-ins lately. If Nintendo can get Motion Plus into all its consoles, and get a Netflix Channel put together, they'll be in a good position for Move and Kinnect competition. I wish they would give us some DVD playback to, but then why would Nintendo ever listen to their customers?