Yes thats right, shop is functional.
Use /shop for options.
Achievements is back too, use /stats to see where you at and /ach for achievement help.
Bukkitofblocks is also back, so glass and stairs recycle on break again. Use gold pick to recycle smoothstone.
Holla at me if your 3DB balance isnt the same as it was pre MC 1.3, I have list of pre 1.3 balances but need to add in game.