I have been using the iPhone Analytics App available via the iTunes App Store for quite some time. It allows you to view all of the sites you have configured in Google Analytics in a very clean interface on your iPhone or iPod Touch. Recently when logging in I have been getting an error that my username and password are incorrect. The issue appears to be that Google recently modified the way others can access the web analytics data and have now provided a new API so the developers have mentioned that they are completely rewriting the application and will launch a new version in 2 to 3 weeks. The developers also have offered a refund to anyone asking though I would suggest everyone to hold on as they are being up front and they have the best Google Analytics application for the iPhone.