Thank you for the emails and requests for a 2010 version of my 2007 solution to Global Navigation . I have created a beta version for 2010 and have had a few people test it out. They found a serious issues when ever you add a calendar web part, navigation no longer shows the pull downs, OUCH.
I have done some preliminary testing but have not found the cause of this. I am currently on a big SharePoint project that is taking up all my time, got to pay the bills, and so I have not had the time I wanted to look into this.