I couldn't really watch it, unfortunately, but the general feeling I saw on Twitter was that this was a vast improvement from last year's WWDC.
Gizomodo has a nice round up of the features announced. HomeKit sounds VERY interesting... it'll be fun to watch vendors try/not try to take advantage of that. And integrating Shazaam directly into Siri is pretty cool - but are people really hearing music that they don't recognize when they are out?
I'm at my brother's right now, and his wireless network uses WPA2. Problem is, my laptop (an Averatec 3150P) doesn't want to connect to it using the built-in wireless card. I've installed the relevant patch (microsoft.com)