Fab‘s ambitious overhaul from back in May is now coming to a mobile screen and/or Facebook wall near you.

The startup’s flash-sale shopping experience is now available on iOS and Android. The company is also rolling out new Facebook Connect features for social shopping and sharing.

Already, mobile visitors account for a ton of Fab‘s traffic — between 30 and 40 percent. And social activity accounts for around half the site’s incoming traffic.

“We think this new set of mobile social commerce features raises the bar on social product discovery, wherever you are,” said Fab co-founder Jason Goldberg in a post on the company blog. “But it’s just the start. Much, much more to come from Fab in the weeks and months ahead on both mobile and social.”

Of course, as avid Fab followers, we’ll keep you updated on that.

Fab first launched mobile apps last October. At that time, mobile traffic accounted for less than 20 percent of the site’s traffic.

Fab 3.0 on mobile will show recent and popular activity from the people you know. The homescreen will feature algorithmically derived featured products based on real-time activity from Fab members and your network of friends across a few social networks.

And as for Facebook, Goldberg said, “It’s hard to believe that we hit 5.5 million members … without ever before implementing Facebook Connect. Crazy, but true. So, starting today, joining or logging into Fab is finally as easy as just hitting the Facebook Connect button — on the web and via mobile.”

Here’s a sneak peek at the redesigned apps:

[vb_gallery id=497431]

Fab is a New York-based company and was launched in 2010. The startup has taken a grand — and we mean grand — total of $156 million in funding to date.

Image courtesy of Robbi, Shutterstock