"which is actually an interactive gadget hosted on Gmodules.com"

Nope. It's hosted at labpixies.com/gadgads/gmail/gmail.xml

this is really cool!!
i hope this is the next generation of AdSense!! :)

BTW,
this page
mail.google.com/mail/help/open ...
is different than this one :
www.google.com/accounts/Servic ...

how come Google made almost the exact page, with just minor changes?

> > "which is actually an interactive gadget hosted on Gmodules.com"
>
> Nope. It's hosted at labpixies.com/gadgads/gmail/gmail.xml

Both, Ionut: the XML source of the gadget is hosted at LabPixies.com, the interactive gadget is hosted at Google-owned Gmodules.com. You can check the Iframe source to see this. Google makes a cached copy of the static XML on their server and turns it into a dynamic gadget via their modules framework.