1.7 Out tommorow, for anyone who didnt know!
+ Pistons! :D
+ Sheaves, you can now place leaves!
+ Bug fixes!
+ EHL OH EHL JAY KAY, Fences are EASIER to stack now :D
+ Textures better
+ Slime balls have a purpose!
+ Better redstone mechanics
= (Not good or bad) TNT can be deystroyed by anything but Redstone and fire
Adventure mode does NOT come out tommorow, it was moved to 1.8, and the things I listed are ALL that is going to be added, check Notch's recent blog post if you don't believe me