Kevin has all the details - I must say I never thought I'd see these guys selling up and joining Microsoft but I'm glad they are onboard, welcome Mark and Bryce.  I've used the tools from http://www.sysinternals.com for years, they are some of the first things I download to all my systems - amazing!  I'm looking forward to seeing FileMon, RegMon and Process Explorer in the OS (my top 3 - which are yours?), you never know it might happen?