I guess I'm stuck in the past, but the Office Ribbon still hasn't grown on me. I think it makes discovering stuff harder rather than easier, more than once I've been stuck on trying to find the word count menu button (if it's so smart, shouldn't it know I was looking for that?). I ran across this Search feature in a Visual Studio Magazine editorial, and can't help but smile/smirk/wonder at the need to have an add-in to help people find commands. Probably not entirely fair, the menu options for any Office product are fairly rich, but does this seem like a good UI feature to need?
While I'm pondering the features of Office 2007, anyone have any idea why they don't have an out of office feature for those not on Exchange? Maybe it's there and I can't find it, but seems like a more configurable option would server everyone well; enter date out/back in the office, reply once to any give email with those dates and be done with it.