If your website has a check out lead generation process and you want to understand funnel abandonment by new vs. return visitors. You can now do this using a new "Conversion Tracking Application" built on Google Analytics API, it's all about insights and action. You simply register with PadiTrack, use secure oAuth to access your data, and you're off, creating useful funnels like (see pic) -- notice the black box with "415 new" denoting the number of new visitors in the funnel:
"With PadiTrack you can almost instantly visualize the conversion funnel for any major event. It works for sales, sign-ups, downloads, contact inquiries and anything else you can think of. The setup takes 3 or 4 minutes, conversion funnels can be created on the fly and you don't need to wait to gather data: it's available retroactively," explains Google.
"We played with couple of web analytics APIs so far but Google Analytics one has been the most powerful," said Claudiu, CoFounder of PadiCode.
More Info: PadiTrack