I downloaded from the store only to find no install. Went into LBP and the store there, and the new pack appears as 5 levels with collectables for the new items, so I don't get what the download in the PSN store is all about. The tutorials are surprisingly 'cheap' IMO. not much at all to them, and no end. You have to manually quit the tutorial. The pickups are the infinite checkpoint, the tetherless jetpack and de-equipper, and the environment switch. Two other tutes showcase changes already in effect - invisible component bits and something else.
The environment widget is certainly very cool. You set the target optiosn for time of day, fog, colour, etc. and a time to transtition to. The widget includes a proximity sensor, or you can wire it up manually to activate on other triggers. Transisitons can be as abrupt as 1/10th of a second. I knocked up a 'player is blinking' effect when testing. You could readily have off-screen changes, like a night-time level with a sudden shift flash of daytime for lightning. A null-upgrade device is added to remove jetpacks or paintinators when SB walks over them. The other stuff is self explanatory!