Quick! Go download the Office 2007 beta. You can test every Office product. Personally, I’m just downloading Office Professional Plus and Visio for work. Naturally I’ll try everything (especially OneNote) at home tonight. So far it has a user-friendly application called ‘SmartSource’ which gives you everything you need to know (including the product key). I haven’t had time to test much lately (I expect Vista Beta 2 in the mail soon). Anyway, why are you reading this? Go download. (Source)