Add calendar event from QR-encoded vcard

Is there any way to BOTH * decode QR codes for vcard-format calendar events without mangling the dates, AND * add them to the calendar (ICS or newer) when recognized? So far, using QR codes generated from two different sites (http://qrickit.com/qrickit_apps/qrickit_qrcode_creator_vcal.php and http://blog.qr4.nl/QR-Code-Calendar-Event.aspx) , I've tried three apps. Two of them (QuickMark Lite and QR Barcode Scanner) misinterpreted the dates, and the one that got the dates right (AT&T Code Scanner) didn't know what to do with it after decoding (all it could do was decode it, and display it lamely in a text window).