Switch has the potential to create a sub category in gaming for the type of device it is which could very well replace the portable market so it's no real surprise Nvidia want to stick around to see what happens. If heavily successful it would be a major win for Nvidia as their tech would essentially be powering the entire portable market with some overlap in the console market.

Let's hope only good things will come out of this partnership.

It would be dickish but that's business. Yes Vita is weak compared to Switch but the wii outsold the ps3/360 and the performance ratio was far greater. wii gflops 11,  both ps3 and 360 around the 250 gflops area. Vita  51 gflops, switch probably 400-600 gflops possibly less. Vita cpu performance looks to be about 4,400 mips (444mhz x 4 x 2.5mips). About half wii u performance and maybe about 1/8th of Switch. It seems the Vita only clocks its cpu up to 444mhz not the higher figures you see elsewhere in Vita specs.  Turn the Vita into a mobile phone that works directly with a ps4 controller and wireless hdmi dongle. New product to compete with Switch.

Business doesn't work that way mate, an annoucement won't damage the launch in anyway if the is no project behind it especially as Nintendo are the market leaders in the market, not only has Vita lessened Sony presence on the portable scene but the onus would be on Sony to convince consumers of that market as a result.

It would end up backfiring because Zelda alone would ensure Switch has a good launch regardless of an announcement meaning that only a long term strategy from Sony can damage Switch and a false announcement isn't that. Only thing that can damage Switch at launch is pricing.

I seriously doubt Vita can do something to Switch.

Why so early?

The future of gaming is switch like gaming consoles.
in 1 year, mobile will achieve ps4 levels, a couple years latter, scorpio's performance.
In 20 years, seems that power for gaming wont be any issue. Super ultra powerfull devices in the size of a pendrive. But you still will need a controller. And a screen, if you want to playing on the go. The only hardware that will be next to tv will be a charger. pretty much like switch.

Vita meana life support . 

We can make this joke because Nintendo already pulled the plug on their own Vita .

They care because its the most legit customer they have and they took the Tegra chips they couldn't sell. Nintendo jumping on Nvidias mobile chip pretty much just made Nvidia a household name in the mobile space which was near impossible before.

Wow, 2 decades are = 4-5 generations.