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Sure, you could carry around all of your personal data on a business card, but why do that when you can just carry about a Poken? These adorable little dongles allow you to carry all of your information (including your Twitter, LinkedIn, Facebook and others) and transfer it to others with the push of a button.
The Poken works by using an embedded RFID reader/transmitter. When a button on device is pushed it allows you to transfer your information between Poken (Pokens?). You can then plug this cuddly little tike into your computer and add that person to your contact list.
Right now the product is exclusively sold in the UK, but you can pick them up online.
Image Credit: CrunchGear
Links:
[1] http://www.maximumpc.com/user/andysalisbury
[2] http://www.crunchgear.com/2009/03/15/poken-tiny-rfid-thingies-that-share-all-your-personal-data-with-others/
[3] http://www.doyoupoken.com/PokenWeb/corporate/buy_list.jsf
[4] http://www.maximumpc.com/article/news/blizzard_offers_additional_layer_security_with_authenticator_dongle
[5] http://www.maximumpc.com/article/news/ibms_ztic_usb_dongle_keeps_your_online_banking_safe
[6] http://www.maximumpc.com/article/news/the_latest_dongle_technology_very_very_small
[7] http://www.maximumpc.com/tags/consumer_electronics
[8] http://www.maximumpc.com/tags/facebook
[9] http://www.maximumpc.com/tags/flash_drive
[10] http://www.maximumpc.com/tags/twitter
[11] http://www.maximumpc.com/tags/usb_dongle
[12] http://www.maximumpc.com/articles/news
[13] http://www.maximumpc.com/user/login?&commentfragment=comments_top_anchor