Publications using the :CueCat, including Forbes and Wired, had to mail a hand-held scanner and a CD-Rom with :CueCat software to their subscribers. The subscribers had to install the software, then attach the device to their computer and wave it over the printed bar codes. It wasn’t portable or easy, and, in most cases, it was more trouble than doing a search or typing in a lengthy Web address. That’s a major reason the :CueCat disappeared.
Today, though, consumers don’t need a :CueCat — they have a cellphone.
via nytimes.com