I'm John Morello, the WinCAT PM for security and anywhere access which encompasses a lot of interesting Microsoft technologies, like Terminal Server, Forefront Edge, and the Certificate Server. I've been a frequent contributor to TechNet magazine on these topics so you may have read some my articles. Just a couple of hours ago, I was interviewed by Charles Torre at Channel9 to discuss PKI and crypto improvements in Vista and Longhorn. There's a long list of improvements, including built in OCSP support, CA clustering, CAPI2 diagnostics, and SCOM management pack support, just to name a few. I'm working on an article for a future issue of TechNet to cover these topics in more detail and we'll update the blog once it's online. I'll also post once Charles puts the video online.