Hi Richard,
The U.S. Government Services Administration (GSA) licensed copy is a non-retail product intended only for U.S. Government use.
http://microsoft.com/Industry/Government/HowToBuyFederal.mspx
There is a 'Home Use/Employee Purchase' provisions
for Federal Gov't employees that may apply/
http://microsoft.com/Industry/Government/HomeUseOptions.mspx
The differences in the product are the license provisions and support.
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So there is no reason for someone to choose one over the other?
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-Richard >>
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I hope this helped you,
Bob Buckland ?

MS Office system products MVP
LINKS to the 2007 Office System
1. Read about it, try it, or watch the movie

the 2007 Microsoft Office system info,
online Test Drive, or downloadable beta is at
http://microsoft.com/office/preview
2. Already have 2007 Office System Beta 2?
Send Microsoft your feedback (with pictures)
http://sas.office.microsoft.com/
3. Use the 2007 OfficeOnline website without Office2007
a. Install the ActiveX access control
http://office.microsoft.com/search/redir.aspx?AssetID=XT101650581033
b. then visit
http://officebeta.iponet.net