Based on the init script explained in this thread, i've developed a application that allows to plug and unplug folders like device disks.
*** This application is in BETA stage ***
*** and requires root privileges ***
Many devices have two storage units (internal and external).
Most programs (games, GPS, etc) do not check this and work with internal storage memory.
This is useful for all users, some of whom prefer to store their data in external memory (removable).
In some cases (not all) can be made for a particular application to work on external memory rather than internal, but this is not always possible, especially because the external memory does not support unix soft-links.
To avoid this, I developed an application that can be mapped to internal memory (in fact in any directory on the device) a directory that is in the external memory (or elsewhere), which allows to solve the problem.
With this application you can access from any location to the data are physically located in another directory and query, modify and even delete them.
In addition, the application detects when you connect the terminal to another computer (PC, laptop, etc) and rolls back the operation to avoid problems. When the connection ends, the links are restored automatically.
Start the application and allow to get root privileges
Click the menu key and click preferences menuitem to enable/disable mount on boot, then click back to go the main screen
Click the menu key and click Edit menuitem to edit mountpoints
In the edit mountpoints screen click the menu key in order to activate menu, that shows two options: delete all (deletes all added mountpoints) and insert new.
The insert new mountpoint screen allows to create a new mountpoint.
In the edit mountpoints screen, the defined mountpoints have their own contextual menu, that allows to delete, mount and unmount a mountpoint.
In the edit mountpoints screen, each mountpoint is represented by a icon (grayed or yellow) that indicates if the mountpoint is active (yellow) or inactive (grayed).
Also, i shows the source and target folders and a checkbox that indicates if the mountpoint is automounted on boot (if you've enabled in preferences screen).
********** UPDATE ***********
*** SOURCE CODE RELEASED ***
At this moment I have no time to update this app.
I have uploaded to GitHub and published the source code in GPL.
I agre if any people, can solve the app issues.