Thanks, the backend is Rails 3 with a JSON-based API. The backend is hosted on Heroku and images are served from Amazon S3, with logs saved to MongoHQ. The app

Thanks, the backend is Rails 3 with a JSON-based API. The backend is hosted on Heroku and images are served from Amazon S3, with logs saved to MongoHQ. The app itself is written with Appcelerator Titanium, but we're switching the iPhone version over to native Cocoa/Three20 because Titanium for iOS 4 is pretty unstable right now.