What we have been waiting for is of course Chipworks' detailed strip-down of the Penryn, which is currently underway. To get up on the background to the material changes see here:
(http://www.chipworks.com/blogs.aspx)
Indeed, Dick James of Chipworks will be holding an evening seminar at The Churchill Hotel's Kalorama Room on the 11th December during the IEDM Conference in Washington DC, which should see him reveal more about Intel’s 45nm process - at least more than Intel will probably announce at the same conference!
I won’t be going to the IEDM Conference this year as we are expected to go to print with the latest edition of Fabtech that week, so someone please let me know all about it if a press release from Chipworks hasn’t been issued by then.