For many, shopping via mobile phone still seems like an era away. But for others, it’s become a regular occurrence.

The only thing I’ve bought via my mobile phone is concert tickets. However, it seems that many of my well-heeled compatriots are scooping up everything from high-end jewelry to fancy rugs.

That’s according to Gilt Groupe, who told me 7% of the company’s weekend sales are made via Gilt on the Go, the company’s iPhone app. (Which explains why the flash sales site was eager launch its app for iPad.)

If you’ve never been briefed on mobile shopping statistics, let me tell you: That’s a LOT of people. Think about it this way. About 3.8% of people shopped on their cell phones during Cyber Monday in 2009, according to the National Retail Federation. The Monday after Thanksgiving is one of the busiest shopping days of the year, so that fact that Gilt garners almost double that percentage of mobile shoppers every weekend is a pretty big deal. What’s more, since Gilt launched its iPhone app at the end of September 2009, sales have increased “significantly” each month.

There are even some Gilt Groupe members who have only used the iPhone app to shop. As in, they’ve never visited the Web site.

For those loath to own an iPhone or iPad, Gilt’s currently working on apps for other mobile devices.