I attended San Francisco API Hack Day last weekend and had an awesome time. There were some really cool ideas thrown around and I didn't get mugged taking the bus home at 10 PM so it was a great day.
I ended up teaming up with Crystal Rose (@crystalrose) and we made an email hack that I think is pretty cool, so I thought I'd share the idea here. We called it "Hack my Email" (which we named with about 15 minutes to go in the competition) and the idea is to open source email filtering and prioritization before it gets to your inbox. Here we are presenting: