NVIDIA Shield owners who downloaded a new software update a couple days ago not only received the ability to stream PC games over 1080p, but were also given the keys to try out NVIDIAs GRID cloud gaming service before anyone else. Similar to Gaikai and Onlive, GRID essentially lets you play games that are hosted on NVIDIAs servers rather than your home PC. Well, that service is finally out in open beta to Shield owners — as long as they live in Northern California.