So just to clarify, is the new Apple TV more powerful than the Wii U?

It must be fairly beastly though, Apple showed it editing three native 4K video clips simulatenously ... that's unreal. While of course they are made for different tasks a PS3/360/Wii U would sputter and die trying to do that. 

No, the AppleTV unfortunately uses the older A8 processor (from last year). However it probably stands to reason that the next-gen Apple TV (next year) will have this A9 or A9X processor. And then at that point, yes, it probably would be more powerful than a Wii U. 

Well, nVidia Android TV is already more powerful than WiiU/PS360...so there's that, though it does cost $199 for 16GB version.

It will be interesting because I think Nvidia is waiting to shrink that to 14nm to put it into a tablet, but there was a leak of a Nvidia X1 tablet that's coming later this year apparently, so I'm guessing that's wha they're waiting for. Probably they want to see some of the A9X benchmarks too and try to beat them if they can. 

Apple is usually some 6 months late compared to nVidia for about the same performance and they seems to need to use smaller nod to achieve that. I'm thinking nVidia might wait Q2 '16 for another significant bump in performance.

Idk, I just don't see Nintendo releasing a handheld that beastly, how much would such a handheld cost? I know Apple devices are sold at extremely high profit margins but still the entry model IPad Pro is $800, can Nintendo release a handheld with similar specs for $200-250? I'm not sure if that's possible and I can't see a Nintendo handheld having any sort of success at a higher price than that.

The bandwidth is far more than any other tablet PC I have ever seen.  It is almost as fast as the X1's bandwidth (64 GB/s).

But it's compute capabilities will put it at near have the X1, if not a little more.

So why is this odd to some people?  The Wii U launched in 2012 as strong as 6-7 year old consoles.

In a word -- yes. 

While Apple devices are very costly at retail, the biggest cost of them by far is the high resolution touch LCD displays. 

The Apple A8X was estimated to cost only $22 as of last year, so the new A9X might be a little more than that, but probably not much more, Apple likes to maintain the same profit margin on their devices. 

$50 - 6-inch 1280x720 cheap but decent LCD display

$40 processor - Lets say Nintendo goes for something beastly

$35 - 4GB LPDDR4 RAM

$4 - cameras (Nintendo cheaps out)

$20 - Sensors + NFC chip

$5 - WiFi Chip

$14 - Battery (large 32 wH battery)

$10 - NAND Flash (16GB or 32GB)

$20 - Misc

$5 - Manufacturing cost

Yeah ... I could see it for under $250 honestly if Nintendo is wlling to sell it at cost. Keep in mind the Nvidia Tegra X1 console is $199.99 and that's a similar class of processor, but obviously it has no LCD screen + battery, but Nvidia is likely pocketing a fat profit margin there too. 

Here's the cost break down for the iPad Air 2, but keep in mind the Air 2 has a massive 10 inch screen at a huge 2048x1536 resolution and is made of fairly premium materials (also ignore the cellular models):

http://pctablet.name/wp-content/plugins/RSSPoster_PRO/cache/3d555_514554.png

Remember the Sony Vita basically used the same processor as the iPad 3, but the Vita was able to launch at $250, while the iPad 3 was $500-$800.