UpdatediOS 8.4 is the next iPhone and iPad update, and Apple fans can download it tomorrow.
UpdatedThe new version of OS X, Yosemite, ties the desktop OS closer still with Apple's mobile OS.
UpdatedOur latest look at the Windows 10 Insider Preview reveals an OS that's nearly finished. The new Start menu and Cortana are continually improving, while Universal apps promise much.
There are limitations which could dent Google Photos' appeal for serious photographers, but for casual snappers it looks brilliant.