Sources close to the joint efforts between Google and Sun Microsystems say rampant speculation about hosted desktop productivity offerings and common operating systems is way off base.

Insiders with knowledge of the joint plans to promote and enhance the OpenOffice.org desktop productivity suite say it is far more likely that Sun and Google will find ways to promote both OpenOffice.org and Google Toolbar, which include having Toolbar included as part of OpenOffice.org, StarOffice, and even OpenSolaris and Sun`s branded Solaris products.

Google Toolbar is a search and Web-surfing utility that integrates with Web browsers.