When we last wrote about OnLive, the "cloud gaming" service had just announced a price and ship date for its MicroConsole hardware. At the time, we also reported that it was planning to launch a flat-rate pricing plan for access to older "back catalog" titles and indie games, with a price to be announced. This morning, the company has set what's now known as the "PlayPack" plan at $9.99 per month, and will make it available to all OnLive users on January 15, 2011.

PlayPack is available right now to those with the OnLive MicroConsole -- or soon to get one, as they've begun shipping to Founding Members today -- in "beta" form, free of charge until the official roll-out.

Currently, the PlayPack beta offers access to a collection of about a dozen games, some new to the service (like Prince of Persia and Tomb Raider: Underworld) while others, like Unreal Tournament 3, have been on the service since it launched last summer. OnLive says it will have a library of 40 games ready for PlayPack subscribers when the for-pay tier launches in January. Looking at the finer print, some of the games "require a mouse and/or keyboard" -- which are supported in both wired and wireless flavors by the MicroConsole. Check out a partial list of games included in the PlayPack beta after the break.