Gmail 2.0 sports a new contact manager with better search options and more flexible exporting options. You might’ve noticed that the contacts list doesn't load instantly and that's because Gmail opens a separate web page in an iframe. Google has recently updated the stand-alone contacts page by adding a logo and a more prominent search box. Unfortunately, the URL is not user-friendly: http://mail.google.com/mail/contacts/ui/ContactManager. The page should be useful if you have a Google account that is not connected to a Gmail address and you would like to access your list of contacts from services like Google Docs or Google Reader.
Source:→ Google System