I wish I had seen this sooner (my apologies -- if you see this kind of cool stuff, drop me an email directly). Kudos to Colin for putting together GMAPMCE whereby you can browse Google Maps from the comfort of your couch. This is more addictive than I thought. This post explains how to get it available from More Programs in Media Center.
Anyone created one of these for http://local.live.com yet...?
Update: Yes, someone did and I feel just horrible I didn't pick up on it from Ian Dixon (to whom I susbcribe). Sean Mcleod put together an app which can be correlated with your geo-tagged pictures from the My Pictures feature in Media Center. Sweet. The app and details (including some source 'how to' snippets) can be found at Virtual Earth Media Center Add-in (The Code Project). Sean hasn't posted since November 10 -- hope everything is all right.