... Dr. WPF was born!
(Yes, I am a year old now... but I like to think of myself as a very mature 1 year old!)
I can't really think of anything technical to say, but I didn't want this day to go by completely unacknowledged because it's been such a great year, so forgive the rather "social" post.
When I dawned donned (thanks mike! 
) my imaginary stethoscope and entered the WPF healing scene (with this post) a year ago, I had no idea what a vibrant community I was entering! I hope I've at least helped a few folks along in their quest to conquer WPF -- the coolest client platform ever created!
I want to say a sincere thanks to my WPF community cohorts who have made this adventure a ton of fun thus far!
In addition to hanging out virtually with WPF disciples, I get quite a few emails each week with WPF questions. I certainly try to respond to as many as possible (although the last several months have been super busy, so I apologize to anyone I've missed). It's encouraging to see how many people are doing cool stuff with WPF. I originally thought I would be posting more answers publicly, but due to time constraints and the specific nature of the questions lately, I often just find myself responding via email. But it's all good.
Please keep these questions coming. If you have general questions, you should definitely post them in the WPF forum first, as you will likely get a response much quicker. But if you don't get an answer, send me a query and I'm happy to help where I can. And I know I've been absent from the forum for a while, but hopefully my schedule is going to allow me to hang out there a bit more in the near term.
I'll just leave you with a couple of my favorite posts that people have sent me regarding "Dr. WPF", the character. (I don't know why, but things like this make me really happy.)
Lots of great info. No offense to the Dr, but the formatting and layout is a bit rough. I prefer to read this one in my RSS reader. (^)
No offense taken! Thanks for the kudos. The Dr. kinda agrees with you on the formatting. But hey, with so many great RSS readers out there... 
Dr. WPF's blog entry on that bullshit is exactly why I hate blogs... This guy is worse than a thousand "hay i webprogram blogs" trolls. (^)
Okay... the Dr. doesn't really get it... but it certainly made him smile! 
Any more of these? Please send me links! Afterall, if you can't laugh at your imaginary self, who can you laugh at?
And for anyone who really needs something technical to chew on, note that the .NET 3.5 SP1 documentation is now live on MSDN. Go crazy!