Backers often face long delays for crowdfunded products
A woman waves a tiny device in front of several food items. Within seconds, detailed information, going well beyond what’s on the label, has appeared on her smartphone. She’s discovered a potentially dangerous food dye in a corn chip and gluten in a chocolate truffle. The short video, which seems more science fiction than reality, was a part of a crowdfunding campaign to finance production of a device called the TellSpec.