We will support different types of encoding, error correction level, and text modes (numeric, alpha numeric, kanji). These are the things that are defined strictly by the standards.
It will be up to you to decide what content to set inside the Text property. The Data in the vCard is actually stored in a plain text that is formatted according to the vCard specification. So you will be able to make your own output of vCard to text, and then use the QR generator to encode this output vCard as text.
Similar with the URL. For example in the goqr.me site, if you place the same URL into the URL field or into the Text field, the output QR code will be exactly the same.
the Telerik team
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