What's Your Walkscore?

Last week during a marketing presentation at the Realpage User Conference, Lisa Trosien mentioned a cool website www.walkscore.com. Obviously in more urban areas this is great, but in the world of housing and rising gas prices this can really help or hurt you. It's not that you can go in and really change or improve your score, but I suggest every business, apartment community, realtor, etc. at least know what their scores are.