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 have a lovely PC. It's all fast and wonderful. It plays games such as F.E.A.R, Black and White 2 and The Movies perfectly well, and does every non-games-related task I wish to throw at it without breaking a sweat. Well, except for one thing.