Do you use Gmail in Chrome? If so then you’ll be able to experience the new update that the Gmail team just rolled out. Because of the technicality of the feature, don’t expect to see it in Firefox soon, and probably never in IE.
A few days ago (6/10) the Gmail team pushed an update that allows users to completely close down the main Gmail window – without losing pop-outs. Currently, the feature only works if you are using the Chrome browser. Another thing is that the Gmail chat windows still closes if you exit Gmail, so we’re waiting on pop-out support for that, but emails and everything else seems to work as intended.
Overall it’s nice little update from Gmail and one more, albeit small, reason to use Chrome with it.