"Nintendo would likely include both a console and at least one mobile unit that could either be used in conjunction with the console or taken on the road for separate use."

This doesn't necessarily mean bundled, like a fully portable wii u .  I think it just means NX products launching at the same time.  Now, there could be a ultimate package option, but that would approach $450-500.

The bolded is incorrect. If consumers find value in it at $300+, they'll buy it. No magic Nintendo curse. Just a desired product.

No it isn't. The portable is included in the dev kit, which is obvious because games are meant to run on both. 

Maybe there will be bundle of home and handheld but certainly Nintendo will sell them separate too.

NX console / box launching Holiday 2016 @ $299, with the mobile / handheld platform launching sometime in '17 for $199.

You heard it here first.

My mistake, almost nobody wants to buy Nintendo console with price point more than $300. :)

which part is really true, and which is just especulation of analists?

Whole this unifying platform means that they will probably launch them in same time.

Also incorrect.

I actually agree with Soundwave's prior speculation that the handheld will launch in Spring/Summer 2016, with the console launching holiday of that year.