Get unread email feed and auto sign-in into GMail

Question

Hi, I'm making an application in Adobe AIR, trying to do two things that GoogleTalk does nicely:

1. Get the latest feed from https://mail.google.com/mail/feed/atom
2. To allow the user to click on a button in the application to automatically sign into GMail in a new browser.

I was able to get the ClientLogin auth key but it's useless for both features above. I looked into OAuth and AuthSub, but both requires a redirect to google page, which is what I'm trying to avoid.

I have searched the Internet but with no luck. Has anyone made anything similar or know how/where I can get assistance?

Thanks,