Andy
Matuschak.

I like to make things. Here's where you can find some of them:

Media

Square Signals, a blog.
Twitter, for the everyday.
Flickr, where photos live.
Fluid Dynamics, my a cappella group.

Code

UIKit, my awesome day job.
Sparkle, a software update framework.
Pixen, a pixel editor.
GitHub, where small projects live.

Feel free to get in touch.