2015 saw the release of several impressive, important products, but the market overall continued to shrink, and many have suffered. Few have managed to improve their hardware and software despite the PC's stormy waters.
The FCC has received more complaints about Comcast than the three other major broadband providers combined. Customers strongly dislike the new data cap program, but also have issues with availability and service speed.
Windows Hello, the new biometric login option built into Windows 10, works far better than any previous attempt. It's not perfect, but it may herald a major change to how users log in to their systems.