Web 2.0 - a window into the mind

I found an article on Scobleizer's Weblog. It was his thoughts on the idea of Facebook opening a hotel.

Think about how a business would change if it knew every one of its customers had a Facebook account.
I was thinking of a hotel/casino where when I walked in the iPod in the room was playing the music that I had set as my favorite on my Facebook profile. The digital screens in my room had all my photos and some random photos from my friends. My favorite movies and TV shows were on the video device. The bar knew my favorite drink and how I liked it made.
That got me thinking about how I’d change my business after I knew everything about my customers.

This thought really hit me about web 2.0. What kind of revolution could this create in business and education? Imagine if you could know everything about your customers or your students. What kind of service could you create. We are always told to interact with students on a personal level (E.g. find out interests and use them to build relationships) and now we have a way of doing this. If you have a tudents permission to access their site, you can see what music/tv/sport/movies etc they like. You can see if theyare mainly visual or prefer written. It can be like a window into their mind.