Nintendo is a very cautious fiscally conservative company, even now in the face of incredible success. They recently lowered their forecasts for the year in light of stagnate Japanese sales so avoid possibly disappointing stockholders. Integrating motion plus into the current Wii Remote design would likely some redesigns, then setting up manufacturing lines to handle the change, and all that costs money.

If they were to integrate M+ (I personally don't think they will.) it probably wouldn't be until late in the generation. As of right now, they don't know how big M+ will end up being, how well received it will be, how many 3rd party developers will actively support it. Also if they earn more money selling it separately, there'd be even less incentive to integrate it.

If M+ ends up being heavily supported amongst a great many popular titles to a point where consumers expect it with the system, I could see them doing it then. Especially if Wii sales have finally stabilized in North America by then. But I think it'd be more likely to just bundle M+ with the Wii and Wii remotes since it's a fairly small and likely unobtrusive item and save the redesign for their next console's controller.

Nintendo never released an N64 controller with a built-in rumble. I doubt they'll release a Wiimote with a built-in Motion Plus.

What you are saying is true BrainBox, but I think they might for a couple of reasons.

Firstly the Wii's momentum is not as strong in Japan as elsewhere so Nintendo will want to do what they can to turn that around and second Nintendo is very agressive about protecting their position in the market from competitors and as such will want to stay 'ahead' of the competition (see E3 2008 for proof of this, basically everything they did there was a reaction to rumors of a xbox motion controller.)

 Oh I agree on both points, and I suggested at E3 they had actually pre-maturely announced Motion Plus and Wii Sports Resort in response to the rumors of the Lotus controller being on the 360. (Wii Sports Resort was the only major 2009 announcement other then China Town Wars, which isn't made by Nintendo.)

But, I think it'd make more sense to them to just bundle the motion plus add-on. If they were to intergrate, they'd be perssured to do it in the current Wii Remote. If this intergration changed it shape or size, it may screw up compatability with the Guitar Hero Controllers, the Zapper, the Wheel and cause a lot of trouble. It'd be cheaper and safer just to continue the actual attachment then redesign the Wii Remote late into the Wii's life cycle to include built in.

They'd be crazy not to. I don't see MotionPlus as an accessory at all. It's what the Wiimote should have had in from the start. Imagine playing the swordfighting game in Wii Sports Resort, then learning that Red Steel won't support it. It would just feel completely archaic.

If they don't, wii-motes will be ridiculous. Buying a full wii-mote will cost more than 80 dollars. An 80 fucking  dollars controller that is supposed to be standard. 40 dollar mote, 20 dollar nunchuck and I'm guessing wii motion + will sell separate of Wii sports resort for at least another 20 dollars.

I thought it was dumb having to buy a 60 dollar controller if I wanted to play boxing with a friend. Want to play the Kendo game with a friend on wii sports resort? You're looking at an 80 dollar plus controller. I don't care if you're fanboy or not, 80 dollars is insane for what should be a standard controller.

I think WM+ integration will be instead of a price drop.

They will remove Wii Sports from new consoles and make it a retail item, replacing it with Wii Sports Resort. They will include WM+ in all new Wii-remotes, possibly built into the controller, not just the add-on in the box.

The reason I believe this is because Nintendo have spoken about how WM+ was how they intended the Wii controls to be from the start, but the cost was too much. Once it is released they will want to get it out to as many people as possible, it will be their Wii 1.5, which will justify keeping the price the same as before, it will also possibly boost sales in Japan.

WM+ will be like the DSi, it's essentially the same product, just with a bit more polish and Nintendo have shown that this is the business model they prefer. Don't drop prices, just add features, similar to what Apple do.

I think you hit the nail right on the head Infamy.

And Vagabond, it's most likely that M+ will be packed in with new Wiis and Wiimotes with no price increase, essentially making them free (unless you need them for your existing remotes, but at least then you get Wii Sports Resort)

I'm not buying wii sports resort three times.

WM+ will have to be a stand alone accessory as well, I'd be shocked if it wasn't