Teen-focused shopping tech is hitting the marketplace, and teenagers are adopting it to get the automotic cool-factor associated with a new technology, according to USA Today.

For a recent mobile pull coupon campaign, for example, in which shoppers text a code found on store signs to get the coupon and then show it displayed on their phone at checkout, the coupons had a 40 percent redemption rate compared with less than two percent for many print or online coupon campaigns. Access 360 Media implemented the campaign.

Another innovation, an interactive dressing room mirror developed by IconNicholson that streams high-definition video of shoppers modeling clothes to their friends' computers or mobile devices, hit stores last week.

And another technology, GPShopper, is an internet-style search engine that lets shoppers search a chain's entire inventory. Consumers can text-message the service to find out if an item is in stock at a nearby store. Best Buy, Toys R Us and Sports Authority are already using the service.