It's not clear if PTC is interested in the underlying technology or keeping Vuforia as-is, but it's buying the entirety of the business. That includes "the developer ecosystem," meaning projects currently in development should be able to carry on as normal for now. For Qualcomm's part, although it's clearly getting out of the AR world, it says it will "continue to drive computer vision technology that will unlock a wide variety of applications for consumers and businesses around the world."