Help map Harringay's happiness (iphone users)

If you're an iphone user and you fancy contributing to a project seeking to understand how people's happiness related to their environment, then think about downloading the Mappiness app.

I'm sure it'll provide a great picture of how happy iphone users are - wonder if Jobs is bankrolling this?

(Right now I'm heading off to the "floating" Chinese restaurant fro some decent dim sum (by UK standards) and do my happiness no end of good!