Along with LA Hacks, we had the pleasure of attending the first (hopefully annual!) HackIllinois at the University of Illinois at Urbana-Champaign this last weekend. The event was entirely student run, spanned two buildings, and was attended by over 700 students. In-between waves of Nerf gun battles, delicious food, and a lot of Let It Go (or Let Me Code if you're brave) a ton of hacking was had.
Shoutout - Github
Shoutout was a fun little app that acted like the Marauder's Map from Harry Potter. Pan around a map with your iPhone to see real time movement of your friends and little thought bubbles for what they're up to. If someone shouted that they were listening to something, you could hear that track via Rdio. Winner, best use of Rdio API
A custom player that finds listeners near by and showed you what they were listening to, while letting you vote on what you approved of.
Provides a pick-me-up & motivation for your specific situation using quotes, images, and music.
radeocure An ongoing project that's a custom music exploration tool that has it's own recommendation algorithm- now backed with Rdio music!
There were a number of great hardware hacks as well, from modded microwaves to fancy light switches. This post's leading image is from team ILLights (Raj V. & Thomas D.) and a special shoutout goes to team Predacons (Mike B., Ismael R., Jake D. and Jimmy P.) who worked late into the night trying to hook an Rdio web player up to an Arduino input.
A list of all of the hacks is up at ChallengePost.