Two way sync of Excel 2007 lists to SharePoint

It seems that by default, SharePoint lists linked to Excel only sync one way if you are using Excel 2007. If you are using Excel 2003, they sync two-way.

Reason for this? Access 2007 is now the favorite “off line client” for SharePoint lists.

If you install an add-in for Excel 2007, lists can again be synced two-way.