This really isn’t fragmentation, these chips will run the ARM ISA just like Qualcomm’s current chips that power Windows ARM laptops. It shouldn’t be any different than x86-64 Windows running chips by Intel and AMD and all of the various chipset combinations it has to support.So I respect that everyone wants to make their own chips but fragmentation in the chip market is baaaaad news. Apple got away with it in their devices because they make the software and the hardware (where have I heard that being a good thing before?). No one else does except Google and they just started last year. And we've seen what a headache all the different chip variants have caused for Android stability and timely updates.
Unless someone comes up with another mechanism for software to be updated and tested on a variety of chipsets (this also includes software written by multitudes of devs of all walks of life, not just OS people), this is just going to cause problems on so many levels.
Android’s issues with fragmentation and update delays have more to do the fact that each manufacturer’s flavor of Android runs custom software overlays on top of stock Android, coupled with Google’s policy of having the OEM be responsible for deploying updates as opposed to the OS vendor as is the case with Windows. Plus there’s an obvious disincentive for OEMs to keep their existing handsets updated with the latest software when they could instead sell users a new version.