Microsoft Windows lead Steven Sinofsky's Windows 8 tablet demo at the D9 show next week could show it off on a non-Intel chip, a trio of insiders said Thursday. An NVIDIA Tegra chip, presumably a dual-core Tegra 2, would power a prototype tablet demonstrating the new interface. Few other details were picked up in the Bloomberg leak, but the event would represent the first instance of Windows 8 on ARM being shown since Microsoft's CES keynote in January.