There have been questions about what exactly the latest PS3 firmware update included. The short answer: lots.

Some of the more impressive features include DVD and PSOne/PS2 game upscaling, and PSP remote play. PS3 Firmware 1.80 came with many other features as well.

I've put up a guide to the PS3 firmware update for those of you curious about all the new goodies. Some are obvious improvements, upscaling DVDs to look better on HDTVs comes to mind, and some are not (printing?). Regardless, this is the biggest update to the PS3 to date, and it's worth exploring the new features, especially if you own a PSP.