professional business cards of the future

How long before professional business cards go electronic? I don't mean in the sense that there're already online forms that give out the same information, though basically expanded. But someday cards will come equipped with computer chips. They'll be in a format that allows some device to read them, and there'll be contact information in a standard form of XML format. Of course contact information, but also about your business and what you can do -- and actually your entire resume. Maybe ways for people to make it more creative, especially for creative careers.

And there'll also be ways to contact people through their business cards. Of course they already hold phone numbers and email address etc, but you'll be able to dial them direct by connecting it to your cell phone/handheld PC device or send them a text message though with your picture and contact info attached as an expanded sig file.