How does storage work on the T301?

Below is the original firmware storage schema for the T301:

 

Name Capacity Appears in ASTRO as Storage Uses
External SD card Up to 32GB /sdcard The Android apps you install will write file folders and app content to this removable storage. You may copy content to this location, but be careful of what you delete as it may impact the function of your apps.

This external slot is for standard and SD and SDHC flash memory cards (up to 32GB) and is useful for storage, or for transferring files to and from your Cruz and your computer.
Internal Device Storage (embedded ROM)  2~4GB / The Android operating system uses this internal embedded storage. It is also the storage location to which apps are installed. It cannot be upgraded. You may not administer this storage location except to uninstall apps you have installed.
IIf you install too many apps, you will receive a warning messgae that storage is running low.

After the firmware update, there are 3 areas. The new storage schema after the firmware update is below:

 

Name Capacity Appears in ASTRO as Storage Uses
Internal storage 1~2GB

/mnt/flash
or simply
/flash

This is the preinstalled micro SD card. The Android apps you install will write file folders and app content to this removable storage. You may copy content to this location, but be careful of what you delete as it may impact the function of your apps.
External SD card Up to 32GB

/mnt/sdcard
or simply
/sdcard

This external slot is for standard and SD and SDHC flash memory cards (up to 32GB) and is useful for storage, or for transferring files to and from your Cruz and your computer. You may copy files between internal and external storage using ASTRO.
Internal Device Storage (embedded ROM)  1~2GB / The Android operating system uses this internal embedded storage. It is also the storage location to which apps are installed. It cannot be upgraded. You may not administer this storage location except to uninstall apps you have installed.
If you install too many apps, you will receive a warning messgae that storage is running low.