Xeon Penryn on November 11th

Intel officially announced that the Xeon Penryn will be released on November 11th.
There will be 7 models available, with frequencies ranging from 2.0 to 3.16GHz. For more details regarding specification and features, read our recent article about Penryn.
So, we can expect the Mac Pro to be updated couple of weeks after or before this date, so either late September for the Apple Expo Paris or early January for the MacWorld in January. Mac Pro would then all feature 8 cores, and maybe more powerful graphic cards.