IT PRO news have a review of Office 2010 technical preview
A quote from the article:
>> Office 2010 technical preview: First look review
Microsoft is using its World Wide Partner Conference to finally publicly unveil Office 2010, in the shape of its first public technical preview. We've been playing with it for a few days now, and it's clear that, while there are plenty of excellent new features, this is an evolutionary, rather than revolutionary, release...
>> Office 2010 technical preview: First look review