WOW I have no clue how this passed me by but for IE7 Beta there is a Developer Toolbar that can be down loaded and shows you a lot of way cool details about your current page. If you are doing any web dev you need this toolbar!
Internet Explorer Developer Toolbar (EDIT: Thanks to Scott Hodson for pointing out I had the wrong link!)
Disclaimer The opinions expressed herein are my own personal opinions and do not represent my employer's view in anyway.