In file and folder link columns, and in file and folder metadata iSheets, in the XML feed, can the IDs of the files and folders be included?  Without the IDs it's very difficult to make any use of those columns (and corresponding iSheets).  It should be relatively simple to get that information and the XML is extensible and should support additional xml nodes or attributes with that information.  For example:  a column with a document currently looks like:

<column position="1" columnid="123"><rawData><document><docName><![CDATA[Agreement]]></docName><docExtension><![CDATA[pdf]]></docExtension><docIndex/></document></rawData><displayData><![CDATA[ Agreement

Just add <id>####</id> inside <rawData> or add an attribute <rawData id="###">