Elektroschock writes "Stephane Rodriguez, a reengineering specialist who became popular for his article on MS-Office 2007 binary data, slaughters Microsoft's new Open XML format. With small case studies he demonstrates the disadvantages for third party developers. His conclusion: It is 'defective by design'. Next week members of the International Standard Organisation are likely to approve the format as a second official ISO standard for office documents. However, most nations submitted comments. Rodriguez claims to be "not affiliated to any pro-MS or anti-MS party/org/ass"."