Due to the new way Lava and water are working in minecraft you can make smooth stone using only lava and water allowing for an easily made smooth stone generator.
The way it works now as far as i know:
water over lava source block = obsidian
Water into running lava = cobblestone
Lava onto two paths of running water = smooth stone
Please correct me if i am wrong.
(i am sorry Battosay but this makes your old generator obsolete, though it was much more interesting then this contraption that took me no more than 5 minutes to build.)
Now for screenies.
First this is a picture showing the "front" of the machine as well as the delay, not it takes about 14 ticks (3 full delayed repeaters and one half delayed) in order to get it to run smoothly.
Thank you for your time!
~Von