Magento AdminExtra 1.2.0 is now available for download and upgrade for FREE. You can now copy the default value of any attribute into a particular store view using mass update!

https://www.magentocommerce.com/magento-connect/mageinn-adminextra.html

New: Added new feature to mass assign/remove multiple attributes to/from multiple attribute sets.
Fixed: Error when copying attribute values with single quote.