I can't help you for coding, but I have found the common format of vCard in previous post. You can try to achieve your task using this format. The left side values are always static. Hope if you can use that way.
For just reference, i found googling... (support for all 3 mobile platforms)
http://learnyii.blogspot.com/2011/04/vcard-qr-code-iphone-android-blackberry.html