OOcharts

OOcharts allows developers to retrieve Google Analytics data. The service queues requests that would normally exceed the Google Analytics API limits to ensure that data is delivered fast and reliably. You can use API to fetch data for a given Google Analytics profile. Authentication is via API key. API Keys can give access to one or more Google Profiles.

Can you use it to pull from Flurry etc? or just GA?

why build my own when GA is so awesome and robust? with customizations and some tweaks, almost everything can be done from within.