I've been doing more reading on urban permaculture, and getting wholly inspired by what is possible in cities and urban areas. Urban permaculture design and initiatives are the next step beyond what is already taking place in the vastly expanding urban agriculture movement - permaculture addresses not just food production, but also sustainability, community, interconnection, activism, communication, education, natural building, equality, diversity, peace-building, and much more. It ties is well with the Transition Town movement and all it's goals. A wonderful quote by Bill Mollison, co-founder of the permaculture sums this up by saying "we are only truly secure when we can look out our kitchen window and see our food growing and our friends working nearby".
Here are some great urban permaculture links to find out more:
Urban Permaculture Guild
Urban Permaculture Trio (video) - forest gardening, edible landscaping, urban permaculture
2011 Urban Permaculture Design Course - Vancouver
How to make permaculture seed balls
Make permaculture seed balls - Masanobu Fukouka