Disk Manager monitors the space used by your apps and other data.
Disk Manager provides a way to find files and directories on storage card which consume a lot of space.
Displays diagram with directories/subdirectories proportional to their size.
Press MENU for actions.
Integrates with OI FileManager and Astro.
If program fails or gives you out of memory error message - please contact me. Thanks.
Source available under free license (GPL-2)
https://code.google.com/p/diskusage/