It's a pretty steep membership fee (costing you a minimum of $180 for a full year), but you'll be able to take advantage of a free seven-day trial at launch. That'll likely either give you a taste for all of those PS3 titles you never got around to playing (or want to play again) or put you off the idea entirely. Sony says it will offer "instant and unlimited access to a catalog of more than 100 PS3 games" from its own game portfolio, as well as from Warner Brothers, SEGA and a number of indie developers. Uncharted, BioShock Infinite, The Last of Us and Batman: Arkham City all feature in the launch trailer (embedded below), at least.
PlayStation 4 owners will be the first to gain access, but the company says it will expand the service to other supported devices in the future. Just like it did for its 20th Anniversary celebrations, Sony has also created a free PlayStation Now theme that will launch in the coming weeks -- just in case you want to apply that "New Year, New Me" ethos to your console too.