PDC09 is happening, and I just blogged about the places you can plug-in:
http://blogs.msdn.com/mswanson/archive/2009/06/19/pdc09.aspx. As Charles mentions, Jennifer and I will start-up our "Countdown to PDC" show sometime around the time the conference site opens (early August). Sign-up for the e-mail list and join the Twitter
conversation, and you'll be one of the first to know what's going on.