They have been doing tremendous development in Philadelphia and have made amazingly positive contributions to the built environment here. They have established a model for development that puts most other developers to shame. There's a way to make things beautiful and to encourage great design and not be a scumbag about it. This is one of many projects spearheaded by the visionary people at Postgreen. I strongly encourage you to take a look at their website to understand what they are accomplishing.
I've been exceptionally fortunate to work with Chad and Postgreen on a number of projects. The Philly Mag article mentions a project that I designed called Duplexellence II that can also be seen on my website here, photo above.
Keep a lookout for Duplexellence 3.0.