I thought this was interesting.. VMware announced Tuesday that they are acquiring Zimbra, makers of the Zimbra Collaboration Suite that is well known for a Linux and Mac OS email server, shared calendar and collaboration software (think Microsoft Exchange but for the Linux & Mac)..

A good write up can  be seen over at the Tuaw Blog, here:
http://www.tuaw.com/2010/01/13/zimbra-and-vmware-get-married-cloud-shaped-kids-expected/

VMware Press Release:
http://www.vmware.com/company/news/releases/zimbra.html