With OnePage, you will never need a business card again. You can organise and share your contact details seamlessly. Your organised contact details can be shared via your mobile phone, embedded on your website or blog, sent as a tweet or any way you want.
Their emphasis is on communicating on/with the cards. They want to do one thing and do it well. With OnePage, people can email you directly without having access to your email. You can embed your OnePage, simply click the Embed button, grab the code and use it anywhere you like.
If you come across a OnePage you like, you add the person as a contact. Just like business cards you throw into that drawer but this time, you can access it from anywhere in the world. The details of your contacts are updated automatically too. Using OnePage instead of a paper business cards will save forests trees and you money.
For more information: http://myonepage.com/