2D barcodes in OpenOffice.org

This extension provides you with 2D barcodes directly inserted into your OpenOffice.org text document or spreadsheet.

Select the text and click the button or click the button and type the text.

You can get the extension here: http://extensions.services.openoffice.org/en/project/2DBarcode

Do you have ideas about how to take advantage of 2D barcodes? Please comment!