About a year and a half ago, the excitement around cloud gaming all but disappeared. Sony bought Gaikai, OnLive collapsed, and Nvidias GeForce Grid partners failed to materialize in the United States. It seemed like an idea ahead of its time, but it actually worked — and now, Nvidia appears to be testing the waters of cloud gaming once more. Today, the company launched an extremely limited beta of Nvidia Grid, a new cloud gaming service exclusively for the Shield. Games look better and are more playable than any cloud gaming system weve tried before — which is to say that theyre actually playable — and they look worlds better than any Android game that the Shield can play with its own Tegra chip.