As usual these updates are just window dressing for the user but great for the UNIX and hard-coders out there. How many times do you really need to check the weather, eh? If Konfab is out there, why would Apple need to spend time and money developing their own Konfab?! Not exactly ground breaking.
Don't get me wrong, I love OS X (I'd thought I'd never go to OS X about 3 years ago, now I will never go back to 9!) but many of these updates get us all excited only to leave the bad aftertaste of incompatibilities and unexpexted program crashes.