If the only thing Sony made was the PlayStation line, then yeah, it would be difficult to call that a coincidence. But Sony has recording studios, movie studio

If the only thing Sony made was the PlayStation line, then yeah, it would be difficult to call that a coincidence. But Sony has recording studios, movie studios, medical equipment, TV's, phones, a huge array of other consumer electronics, various video games (lots for the PC), PC's, and oh yeah, the PlayStation and the PSP/Vita. And as noted elsewhere, the price started moving only 5 minutes into the presentation, way before anything of substance was announced.