EmailContact
$0.99 from Leptonic Systems, Inc. 
Finally, a way to send contact information from your iPhone or iPod Touch!
Simply touch EmailContact and a contact name, and an Email message immediately pops up with the contact information in it, ready to mail anywhere.
Settings allow you to select the fields and categories to include: All, Work only, Home only, All but work, or All but home.
EmailContact doesn’t send vCards, but that’s because we do not send your private contact information through our servers to do so. Safe, secure EmailContact keeps your contacts inside your device, moving the information directly to the Mail application, which sends it to whomever you wish.
If you’ve been wanting to send contact information to people you meet, or anyone while on the go, EmailContact is the application for you.
Unlocking the iPhone’s potential, part 1
Despite the title, this article is not about unlocking the iPhone so it will work on networks other than AT&T. And as much as the cool kids keep trying to tempt me to do it, it’s also not about jailbreaking the iPhone so you can run …
http://www.genuinecuriosity.com/genuinecuriosity/2009/04/unlocking-the-iphones-potential-part-1.html
11 vCard Sharing Apps for the iPhone
As the recession becomes more and more prevalent, networking will become a more necessary tool in making sure that you can stay afloat — whether it is making new clients for business or a contact to help you get a job, should you find …
http://theappleblog.com/2009/01/12/11-vcard-sharing-apps-for-the-iphone/
Sending contact details from your iPhone
In this article, I’m going to look at four applications that - to varying degrees - add that functionality. All of them are available from the App Store. First up, vCards (59p). This is a straightforward app that can send any of your …
http://www.allaboutiphone.net/2008/11/sending-contact-details-from-your-iphone/
