The thing is though, Sony are selling the PSEye2 for $60 at retail and wouldn't have charged that much if they'd put it in every PS4. Even at retail cost, the PS4 would have been $40 cheaper.

this

lol PSEye cost $20-30... it will be sold at $60 with profit.

Makes sense please.

My theory? Xbone is having production issues due the big and complex APU... it is likd $80-90 PS4 APU vs. $140-160 Xbone APU.

PS. If the productions issues with yields are so high the APU can cost over $200.

If I recall, before the leaked specs, many people expected the Nextbox to be more powerful than the PS4. But it turns out the PS4 is cheaper and more powerful. I didn't expect this. is Kinect 2.0 worth the hassle? I don't think so. Time will tell wat can be achieved with Kinect.

I never inferred that you did. I asked if that's what you thought. Hence the question mark.

The launch of a console is not the time to try and make a significant profit off of the hardware. If you're suggesting that Sony would have tried to make a $40+ profit off of the PSEye when they planned to bundle it, that goes against the long term strategy of taking losses at the start of a gen to gain an install base advantage, which is what Sony did with the PS1, PS2 and especially the PS3. It would be a stupid, shortsighted business plan, and there's no reason to believe, let alone try and guarantee, that they would go that route, from either a historical or business perspective.

Mobile Market does have a need for DDR4, it uses less power.

Also, Initially, like DDR and DDR2 that came before it, DDR4 won't be that much of a leap over DDR3, heck you can already get DDR3 that will clock up over 3Ghz.
Won't be untill a few years after launch that speeds will climb above DDR3's ceiling.

As for DDR4 vs GDDR5, lol. - Enough said, GDDR5 will still have a massive bandwidth advantage and won't be replaced untill GDDR6.

i think MS will announce a 350 xbone before release without kinect

The original price for the lot was going to be $499 regardless of the retail price. The thought of retail price for the peripheral was secondary.

http://www.ubergizmo.com/2013/06/original-sony-ps4-price-was-reportedly-500-removal-of-ps-eye-cut-it-by-100/

That is simply not true all early indicators from devs said the ps4 was more powerful even when they were both using 4gb of ram

It's not just the Kinect. The xbone APU includes CPU, GPU & ESRAM, all in a single massive die. As die sizes increase, fabrication yields drop, making the cost of manufacturing exponentially higher.

Microsoft made a terribly poor choice from the start, by choosing DDR3 memory not just for system, but for graphics use as well. In order to deal with the bandwidth bottlenecks caused by slow memory, they had to implement some sort of on-die solution. Namely, the ESRAM. But if you increase your die too much, you will then bleed money from low yields. And that is the price you pay, when you make poor design decisions.

To summarize, i am 100% certain that the PS4 has a lower bill of materials than the Xbone, even without including the Kinect. The Xbone is so huge for a reason. That ginormous APU requires massive cooling.