Their blog post describes the thought process behind the unique WordCamp schedule:
We decided to divide tracks differently than any other camp had before. Instead of “users” and “developers”, we decided to finally give design some space of its own, and leave the programming track for high level hacking. We decided to experiment and throw a smaller track in for the Real Estate Industy, a strong vertical in Phoenix. We decided to add programming on Friday and on Sunday to better help the local community.
The four tracks at WordCamp Phoenix are Design, Programming, Marketing and Realty. Over 60 proposals were submitted for the event, but ultimately only around 25 were chosen.
High profile speakers include Brad Williams of Professional WordPress, Lisa Sabin-Wilson of WordPress for Dummies, and Cory Miller of iThemes.
Registration is currently open for WordCamp Phoenix, which will run from Friday January 28 to Sunday January 30. Tickets start at $25.