One can be impressed by the effort and ingenuity (I am) and still question the premise. Business cards have a purpose — to provide info about a person/company.

One can be impressed by the effort and ingenuity (I am) and still question the premise. Business cards have a purpose — to provide info about a person/company. This implementation defeats that purpose. Plugging in any USB data device is prohibited by most infosec policies. Even if it wasn’t, it’s generally not a good idea. Not everyone has an isolated second computer. I would argue the business card isn’t the card itself but the blog post detailing how it was made. Edit: author agrees.