Have to disagree. OpenOffice comes nowhere close to the kind of productivity MS-Office gives you. More so if you are a big user of Excel. While OOO is lightweight, MS-office UI is much better. And the kind of bling that MS-Excel has for graphs and making graphics, OOO doesn’t seem so much of fun…
Office 2010 is much faster then 2007. And some really cool stuff like sparkle and the screenshot tools are interesting..
Does the preview have the themes, the leaked version didn’t have those?