On September 21, the wonderful city of Chicago hosted another iteration of the venerable Music Hack Day. It was a more intimate crowd than we've been used to lately, but there was certainly no lack of talent or creativity, and three of the hacks presented used the Rdio API. Here they are!
Jambox is a mobile web player with a responsive design that plays music from Rdio and videos from YouTube so that you can listen to your jams on the go. Winner, best use of the Rdio API
Hot 100 Replicator
Clone as many copies of the Billboard Hot 100 playlist to your Rdio account as your heart desires. This replicator was built by Rdio's own Kevin Nelson to help make Billboard's life easier when they update their Hot 100 Playlist.
The full list of hacks are up on Hacker League.