Magento Recurring Profiles Grid Improvements
Just download this and upload it. It doesn't alter any core files (good), it is a app/code/local/Mage version of the grid.
It will add a few columns to the "Sales" -> "Recurring Profiles (beta)" tab in the Magento admin.
Additional Info (unserialized) Coupon Used Customer Email Customer Id Customer Name Next Bill Date
TODO: refactor the renderers