We have liftoff, well almost. We have the countdown at least! Sometime in April we will have a release candidate RC and sometime in May we will have RTM. See the MS blogs, http://blogs.msdn.com/sharepoint/archive/2010/03/05/sharepoint-2010-office-2010-launch.aspx
Looks like I got on a list to try out Office 2010, and other products relating to 2010, visio, infopath, etc. I am excited to see what is coming, and I will post about my thought and experiences when I get these things installed.