The following Passover allergy alert is from a reader on April 7, 2010.
Kestenbaum's Oat Matzos came in Gluten-Free and non-Gluten-Free varieties. The packages look alike, however the gluten-free variety says Gluten Free on the package and the variety containing gluten says oat flour (contains gluten).
The previous alert can be cited with the URL: http://www.kashrut.com/Passover/PAlerts/?alert=P0256