A Poken is a small device that lets you exchange your contact information with other people that also have a Poken. It’s much like a business card, but contains a lot more – for example your social network information. No more searching around in different social networks to hunt down the username of the person you just met.

Here is what the official Poken website has to say:

• You connect to people in the real world, when and where you meet them: What’s more natural than linking up with a new friend on the spot? Don’t scribble your email address or phone number on a paper napkin or search for them later on Facebook. Just ‘high-four’ to connect instantly.
• Poken is your social business card. Scrap the paper business card! Your Poken card is far more comprehensive. Rather than handing out a piece of paper that shares just your basic contact information such as company, address, phone, and email, with Poken you can include your social network profiles as well. When you associate a social network to your Poken identity that social network’s favicon appears on your Poken card. If you are connected to your friend on that social network, then they can click the favicon link to instantly view your social network profile. If you opt not to be connected on that social network, then they will simply see the public-search version of your profile.
• We record the time at which you connect to people. And since you’re connecting in the real world, it’s a valuable piece of information that lets you view your networking chronoligically. So, when you’re wondering what’s-the-name-of-the-person-you-met-two-weeks-ago-when-you-were-with-Bob-at-his-cousin’s-party, instead of tediously going through your whole alphabetical list of contacts, you can simply “scroll back” to see who that person was.