I stayed at Hotel on Rivington (highly recommended by the way - check out my flickr pictures of my room) on Wednesday night while in NYC on business. On Thursday morning I was connected to the iTunes libraries of a few other guests of the hotel and listening to a bunch of music I'd never heard before. I love this feature! However, I'd like Apple to look into how people use this, and take it a little further. Here's a few ideas I have for features I'd like to see:

• Let me see a history of recently played tracks that I played from other people's libraries
• Rather than the grey-arrow-take-me-to-the-iTunes-Music-Store button next to each track, give me a better signifier that the song I'm listening to is actually available from the store.
• Let me say thank you to the person whose library I'm using! Whether it be a guestbook, or simply through a notification, allow me to show my gratitude
• If I'm listening to music in someone else's library and this results in a sale at the iTunes Music Store, reward the person whose library inspired my purchase.

Anyway, I'm sure there are many other things Apple could do. I can't help but think that they should be nurturing the community of users who interact in this way, and give them ways to further interact.