Robert X. Cringely's latest I, Cringely column looks at three major changes, or "inflection points", as he refers to them with all due credit to Intel's Andy Grove, happening in the computer-audio-video-entertainment convergence we've all been waiting for now for nearly a decade. Those changes involve Microsoft, Apple, Yahoo and Google. He's predicting an Airport-Express like device for audio and video that will turn the Mac Mini into a PVR, coupled with an iTMS-like store for HD movies, designed to pre-empt what Microsoft is trying to do with the Xbox 360, which is basically the same thing except with gaming as the test case.