From what I have seen, samba works fine in normal KDE dialogs. Any bugs with the KDE4 OOo integration would likely be with the integration patches themselves. Due to the complete difference of the KDE3 and KDE4 integration patches, I would advocate that a new bug be reported for any smb issues found with OpenOffice in Kubuntu 9.10 and above.
From what I have seen, samba works fine in normal KDE dialogs. Any bugs with the KDE4 OOo integration would likely be with the integration patches themselves. Due to the complete difference of the KDE3 and KDE4 integration patches, I would advocate that a new bug be reported for any smb issues found with OpenOffice in Kubuntu 9.10 and above.