Kisslo also accused Google of not following the OpenDocument Format (ODF) spec with fidelity in Google Docs applications. The Google spokesperson called that claim "ironic" for Microsoft. (Microsoft has had its own issues staying true to the ISO/IEC-standardized version of its Office Open XML document format spec. However, the company did previously announce support for ODF in Office 2007.)
This seemingly minor spat between the two companies has deep implications. At stake may be much of Microsoft's empire, based on its two cash cows: Microsoft Office and Windows.