calcprogrammer1 has updated his file browser for NDS.

Changes:

DSFile v0.5 is out! It now supports copying files and deleting files, as well as browsing. The controls for copy, paste, and delete are located on the menu bar of the bottom screen. When deleting it will ask press A to delete, B to cancel.

http://forum.gbadev.org/viewtopic.php?t=13779