At the Red Hat Summit this week, in one of the opening keynote presentations, Arvind Krishna (the IBM General Manager for Development and Manufacturing in the IBM Systems & Technology Group), presented a good summary and strategic view of IBM's continuing contributions to open-source communities, technologies, and customer solutions.
The video of his presentation is available here
Near the end of the video (right before the 23:00 mark), Arvind makes two announcements which help demonstrate the continuing excitement and investments around Power and Linux for customers and new technologies.
With KVM support coming to the Linux-only Power servers next year, a new realm of virtualization becomes available for Power customers.
June 18th 2013: Adding link to IBM Press release: http://www-03.ibm.com/press/us/en/pressrelease/41255.wss