Google quietly added a small feature to Gmail this week called Mail Fetcher. When that feature launched, Gmail became perfect.
Mail Fetcher allows users to access non-Gmail email accounts from within the Gmail interface. If you have a Yahoo email account, and a work email account, etc., you can simply access that email from within Gmail, using POP settings. Gmail will now work in a very similar way as Outlook does on the PC desktop.
Although savvy users are already ‘forward’ their mail, this feature will likely make Gmail much easier to use for the other set of users.