Did NVIDIA say it would stick to one new mobile processor design per year? If so, it's not worried about its own rules: meet the Tegra 4i. The 4-plus-1 chip formerly known as Project Grey is a Tegra 4 mostly in name, and goes for integration rather than raw power. It sheds the newer Cortex-A15 architecture of the Tegra 4 for a spruced-up 2.3GHz Cortex-A9 with the i500 LTE modem built directly into the