Here is a link to an overview of Apple’s Featured Earth Day App Picks, 2011.
It is not very much interesting on the list and only one “PlugShare” that I see as potentially transformative. There are a few other apps that are nice, but more traditional “end-of-pipe”/make a slightly better consumer choice/get some general information”.
Will be interesting to see if Apple will focus on apps with greater potential next year. Would also be interesting to do an “impact assessment” where the result of X people using the app is provided.