Sitting here with my shiny new laptop, I can tell already it's going to increase my productivity multifold. No more waiting 5 minutes or more for haskell-src-exts to compile!
I'm going through the standard motions, first install is Opera of course since I can't stand IE more than the time it takes me to type http://www.opera.com/download . And I need a browser for everything else I want to install.
Second install is GH... no! Halfway through the download I realize my error. No longer will I have to go through the chain of installing GHC, cabal, alex, happy, etc. Haskell Platform, yay! One download, one installer, and I'm ready to roll. A most pleasant experience I must say, and everything seems to work perfectly out of the box on my 64-bit Vista. Way to go, glorious Haskell community!