Image via CrunchBaseLot's of friends are writing blogs right now and a bunch of them are posting music. It's really hard to listen to music in Google Reader. I'd love to see "music player" functionality added. Something that pulls music from the page and let's you play it in Reader. Ideally, it would just roll through all the music posts in my queue.
There is something kind of like this in Tumblr. If you look at the bottom of this I'm All Ears blog post, there is an app called Streampad that kind of does this. This would be a great addition to Google Reader.