Case Sensitivity : smiley codes in the web version are case insensitive... meaning :d is as good as :D
Blushing : Subtle in the previous versions.. now transforms in to a Tangerine orange.
Broken Heart : Added a crumbling animation after the heart split.
Angry : No steam coming out the ears this time round...simply a teeth grinding head shake!
Both laughing & Rolling on the floor laughing : Essentially the same.. slightly more animated and some extra frames.
Angel : ...has got herself some new wings :)
Clown : sees the return of the original colour clown... but now with a Stephen King style twist at the end! :o
Cowboy : Old smiley his hat drops over his eyes and gets poked back up with one finger... replaced with a hand grip and more of a howdy raise.
Coffee : Hoping they made up a fresh pot :p (shame it's still not any bigger!)
Idea : Eeeeek! it's lost it's face!
Skull : Makes a revamped blast from the past
Bug Smiley : The web version will randomly change from it's red bug colour into either yellow, blue or green.
Frustrated : Gets to vent some of that built up frustration with a animation...
Feeling beat up : Has a smug look to begin with.. and pays for it later with a bigger 'mouth stretching' blow... Ouch!
Shame on you : Changes from an ignored 'nup' to a very direct 'No NO NO!'
Star : Caught the same bug as poor lightbulb, losing it's face and colour :(
Puppy dog eyes : This is the most significant change to the default smiley set; guess the puppy dog has grown up a little...(make sure you wipe your monitor after using this one :p )