Check out this report from eweek on Palmisano's top 15 moves.
Move # 8 is all around the IBM Open Collaboration Client Solution (OCCS -- http://www.ibm.com/lotus/openclient) including virtual linux desktops using Virtual Bridges and Canonical - the Microsoft desktop alternative, and Symphony (http://symphony.lotus.com)
Why should CIOs and CFOs care?
1. Opportunity to free up your IT budget
2. Opportunity to get ROI in less than a year
3. Opportunity to lower TCO