The OnLive streaming game service that takes console and PC games, renders them server-side, then streams it to your Mac or PC, will go live on June 17 in the US (lower 48).

The upside for the platform, as OnLive puts it are the instant play (because games are rendered and already slotted up on the server), easy multiplayer, saving games in the cloud, always-updated games and instant downloading of add-ons, because there are no downloads (it’s all server-side).

A couple future-looking announcements they made were that they’re going to focus on Macs and PCs first, but have a Microconsole TV adapter in the future in order to get this onto your TV, plus maybe support specialty controllers and motion gestures depending on the demand for these games. They’ll also have 1080p, 60FPS streaming some time in 2011, depending on how many of their customers actually can support 1080p60.

Check out more at OnLive