I'm working a nights/weekend startup that positively conflicts with the subject matter: a better kiteboarding forecast service/app. http://kitecaster.com The idea is to model how kiteable a spot is based on the location, your schedule/equipment, and of course the weather. Prototype is going slow, kiteboarding gets in the way! And I am enjoying doing the full stack using the tech I want (node, Parse, etc) when I should outsource some things, but we're looking good for 2013!