Blogosphere has been full of speculations about when and if ever
Microsoft will support ISO/IEC 29500 format in MS Office. Some people
believe and wish that OpenOffice.org with ISO/IEC 29500 support will
be released earlier then MS Office. But don't get fooled, the first
application conforming to ISO/IEC 29500 is out, it is neither MS
Office nor OpenOffice.org, it is coming from Free Software Foundation
and you can see screenshots here.