We've reported on Microsoft's development of a custom Xbox gaming handheld a number of times, with Microsoft Gaming head, Phil Spencer, recently confirming a foray into hardware was in the works. Now, though, it seems as though Microsoft has shelved the idea for the meantime, instead putting its wei...
I don’t know how much of that was needing to prove that the market existed rather than the simultaneous development of performant and power efficient x64 APUs suitable for handheld gaming PCs. The 3DS was plenty successful even at the time, but handheld-only games had a reputation for being the B game to the home consoles’ A game. It was a pretty natural conclusion for Nintendo, when their handheld was successful and their home console was not, to combine the two, using the same tech found in cell phones, no less.
Hard to say for sure without seeing a timeline where Nintendo didn’t make a hybrid console and seeing if the Steam Deck and other PC handhelds still happened the same way. I’d be surprised if the success of the Switch had absolutely nothing to do with the Steam Deck’s creation, however.