It improves the search options of the user created levels which previously weren't up to much. In the past you would login to LittleBigPlanet only to see the same levels over and over. Not anymore. Now you can search by "Busiest", "Most Hearted" and "Highest Rated". This basically means that a bunch of new levels have now been able to come to the forefront.

Within minutes I was playing previously unfindable levels that eclipse the Media Molecule designs. I recommend everyone check out DarknessBear's wonderful Dead Space level.

Media Molecule also announced a Metal Gear Solid level pack which includes costumes, new levels, a bunch of new trophies and a paint gun. Fantastic. Check out the trailer:

In short this is most likely the best thing that's ever happened.