Where are the SDK?

"Roy Chen" <[email protected]> Mon, 18 Nov 2002 17:31:02 -0800

Newsgroups	gmane.ietf.vcalendar,gmane.ietf.vcard
Message-ID	<[email protected]>

Hi, guys,

I cannot find the SDKs for vCard/vCalendar in this like:
http://www.imc.org/pdi/pdiproddev.html, only the specification. Where can I
download the SDK?

Thanks.

Roy Chen