Yes, Office 2010 is now available to all!. Check out some video clips.
Then, for the developer inside of you, check out these videos on the Office Developer Center and start developing solutions for Office.
And Microsoft is “all in” for the cloud. So be sure to check out Office in your Windows Live account. You can create/edit/share Word, Excel, PowerPoint and OneNote documents on your SkyDrive, even without having the Office 2010 client.
Lastly, if you want to catch a glimpse of some cool business productivity demos with the cloud using SharePoint/Office 2010, Windows Phone 7, Unified Communications and Windows Live, check out this TechEd North America 2010 video.