The title I think is a little misleading – but this new feature from Google Labs is awesome!! When I first read this, I thought I could read multiple Gmail accounts in one window – but what it really means is that I have have multiple searches run right in my inbox screen.
The new feature–called Multiple Inboxes–allows users to have multiple viewing panes open simultaneously without having to open another browser window. The upgrade gives users a quick view at important labels as well as saved searches.
I have set this up in my work email to show me unread items at the top and then items from the multiple Koha mailing lists – this is pretty darn handy. Check it out under the Google Labs in your email account – that and many other of the Labs tools are well worth installing to make your Gmail experience that much more enjoyable – and productive.