As in, the original gameboy?

The device that was famously designed out of cheap old parts, with low energy consumption?

The Gameboy was the exact opposite of a high end handheld system. It was successful because it was relatively small, therefore very portable, ultra cheap, had a very long battery life and good games.

In fact it beat out direct competitors like the game gear, wich was far more powerful and had a color screen, because it was so cheap.

I think i would love a 720p amoled capacitive screen with a tegra x1 chip. Higher resolutions aren't essential and also would allow a powerful chip like the x1 to run games almost on par with x1 and ps4, allowing easy ports. I think they also have to find a way to make android apks (a little like what blackberry an wp did) conversion in an easy way, so they would get quickly a lot of great games that work really bad without controllers like final Fantasy series or gta and max Payne.

That's because in 1989, mobile components were in an *extreme* stage of infancy. Even an LCD display of a large size was something relatively eye raising. 

Game Gear never had a chance in hell of ever beating the Game Boy anyway, because Nintendo was the earth, moon, and stars of the gaming world back then. 

Today mobile technology largely due to the smartphone boom is in a hugely different place, you can get a tremendous amount of technology in a small size and for a cheap price. 

That wan't the case in the Game Boy days. Look at the freaking Game Gear. The thing is almost the same size as an N64! It required like six batteries to run for a couple of hours. This was completely unfeasible technology. 

And that Atari Lynx was even bigger than a Game Gear, lol. Way bigger. 

Today mobile chip tech is much more akin to what normal processors were in the 90s ... there's no reason why Nintendo cannot make a very powerful portable for 2016, just like the NES, SNES, N64, and GameCube were all very competent, powerful, and affordable simulatenously. 

In the 80s/90s a high end handheld didn't make sense, because technically it wasn't possible without producing something laughably huge, expensive, and constantly requiring new batteries. Remember back in the 80s we didn't even recharagable Duracell/Energizer batteries that you could just charge at home. When my Game Boy's batteries died, I had to go to the store and buy new ones every single time or use the AC adaptor to play at home. 

I agree. Though, I believe even Nintendo wanted to bring (their) home console-style gaming to handled gaming, and I believe this is one of the main reasons why 3DS has underperformed copared to its predecessors (addtionally to smartphones, naturally, and to a bad start).

more power absolutely - no 3d OK - I really hope they make a new handheld - i love those games!

Vita didn't fail. It just got hit by the smartphone tsunami first because of demographics. The first adopters to smartphones/tablets were older teenagers and adults. That was the core audience that drove the PSP, which was also $250 at launch and went on to sell 80 million units.

But smartphones ate away that audience first, it was already happening to the PSP, which is why Sony desperately made commercials like this where you can just see the frustration.

https://www.youtube.com/watch?v=UqgEify4DOU

https://www.youtube.com/watch?v=-T5_wDrk8SY

Sony knew they were fucked with the Vita even before it came out, the PSP was just so successful in Japan because of Monster Hunter that they had to release a successor. 

The Tegra X1 in a small handheld form factor, where the battery size is limited to 2000 - 3000 mAh? They didn't even dare it yet to put it in a commercial tablet, where a battery size of 5000 - 10000 mAh is possible.

The current X1 is still made at 20nm I believe, it's going to get a die shrink to 14nm/16nm (or Nvidia signed a deal with Samsung for that). That version of the X1 will be able to fit into tablets without much fuss I think. 

I don't really even see why a battery has to be limited to 3000 MaH. Change the form factor, it's not like kids even see a folding portable design as something hip or modern so they sure as hell aren't asking for that. Or even in a 3DS like design, you could use the space behind the top display for a large sized battery.

Imho 720p is the highest we'll get if Nintendo wants to do an affordable device that doesn't bomb...

My personal minimum if I'm Nintendo, is I would ask AMD for a portable chip that can run a port of any Wii U @ 720p.

That means in portable form it should be able to run Splatoon, the new Zelda, Mario Kart 8, whatever. I think it's possible.

The Wii U chip consumes 33 watts running a game off a disc drive (so probably actually 30 watts or so) @ 40nm, tinker with that, throw out the IBM CPU cores for something more modern, start with a 14nm chip, obviously no disc drive ... you probably start to get down into the 7-8 watts per hour usage range without much fuss.

Keep in mind the Wii U chip is also old as fark, it's 2010 tech, AMD likely has learned a lot about power efficiency since then too. 

If you can get better than Wii U power ... fantastic.

This way Nintendo's developers can basically continue developing games of the same scope without any fuss. Then for the super-duper NX console, just take that same game and scale it up to 1080P (or beyond even .... 2K? 4K? depending on the complexity of the game), add some graphical effects and voila. Now you have games that function on both handheld and console without Nintendo's designers being compromised too much in what they do. I think Nintendo's designers probably would be fine working on Wii U level visuals for the next 5-10 years. 

This would allow Nintendo to port games like Xenoblade X, Donkey Kong Country: TF, Bayonetta 2, etc. to the next-gen portable, which would allow these games that were criminally underplayed by most people to find a wider audience that they deserved.