Surface is one cool piece of technology and it's certainly one of the coolest from Microsoft. Unfortunately, since it was first announced access to the SDK has been reserved for initial launch partners like AT&T and Harrah's. Now, those attending the 2008 PDC will be among the first to gain public access to the SDK and learn about developing on the platform. And I'm pretty sure the SDK will be included on the shiny new 160GB hard drives we're giving away to every attendee. How cool is that?
If you're going, look for me at the Microsoft booth. I'm really looking forwarding to meeting tons of interesting ISVs while I'm there!