Roz Ho is out as head of Microsoft's Mac Business Unit

Roz Ho, who has headed up Microsoft's Mac Business Unit (BU) for the past seven years, is moving to the company's Entertainment and Devices unit, Macworld is reporting.

The new Mac BU head is Craig Eisler, who rejoined Microsoft in February 2007 from AOL Wireless. Previously, he was the development manager of DirectX.

In a blog posting announcing his new job on the Mac BU Team Blog, Eisler noted:

"Apple and Microsoft are great partners (have been for over 20 years), and there is still more we and Apple can do together."

Interesting news on the eve of Apple's Worldwide Developer Conference.