There is no way MS will offer a Linux version of MSOffice. To do so would be to give credibility to Linux and invite direct comparisons with OpenOffice. How could they hope to sell MSoffice for $100+ when OOo is free? But if they reduced the price for Linux then why should Windows users pay more?
The success of Linux in india has forced MS to offer a 'special' version of Windows for only $20. See this article:
http://www.businessweek.com/globalbi...921_463452.htm
What if they had to do that worldwide?