Google late Thursday unveiled a new Gmail Labs feature that allows users to have more than one inbox in their default Gmail view.

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.

Google software engineer Octavian "Vivi" Costache explained in a company blog post why he used his "20 percent time" to develop the feature:

I'm seriously into filters and labels. All the email I get related to Flash goes under my "flash" label, everything about paragliding goes under "flying," and they all skip my inbox because that's how I like to stay organized. But when new email arrives I have to switch to the "flash" label first, then click on "paragliding," etc. I wanted a way to see it all at once.

For those who use their Gmail accounts for multiple personal e-mail lists, as well as for work, this is a huge step up.