Microsoft announces changes to promote interoperability

> This is a huge win for the activists who have long argued that closed 
> formats are bad for users. Microsoft's government and corporate customers 
> are starting to listen to this argument, and Microsoft clearly thinks 
> here's a risk that it will lose market share as a result.

Actually, those specs are the best argument why you should not use those formats at all. 

Some enlightening comments can be found here: 
http://www.joelonsoftware.com/items/2008/02/19.html