Ryan and the crew have tested out NVIDIA's GRID, the cloud streaming service that lets you play games at 720p, as long as you have a 10 Mbps down connection on a network with a NVIDIA GameStream-ready 5 GHz Wi-Fi router and 60 ms or less ping time to a GRID server. In testing Ryan did notice lag but he still found them playable once he mentally adjusted to the delay.
Today NIVIDA announced an upgrade to the GRID service, 35 of the 50 games on the service can now stream at a full 1080p and 60fps including Batman: Arkham Origins, Devil May Cry 4 and Dirt 3 Complete Edition. In order to properly enjoy the HD quality you will need a compatible router from the list linked to above and connection of at least a 30 Mbps down, with 50Mbps being recommended by NVIDIA for best results.
The new SHIELD Hub beta is available to SHIELD owners by following the link in NVIDIA's blog post here. They also announced the addition of Bionic Commando to their library, playable at the new resolution.