https://maemo.org/community/brainsto...internal_flash

about 27GB of the N900 internal flash memory are reserved for a VFAT (FAT32)
partition which is mounted on /home/user/MyDocs and exported as USB mass storage.
The VFAT filesystem is an ancient, slow, inefficient (cluster size, bad for many small files) non-POSIX compatible (no symlinks, permissions etc) filesystem and only used for maximum compatibility when exporting it via USB mass storage.

It would be nice if it would be replaced by a ext3 or any another modern POSIX filesystem and merged with the /home partition so that all advantages of those file systems can be used. This would remove the 2GB limit for the home partition and make a more standard Linux home directory layout possible (eliminating MyDocs, new directories Pictures, Documents etc. in the home directory).

For USB mass storage mode file system images with any file system (e.g. ext3, NTFS, HFS+ depending on the users desktop OS) and arbitrary size could be stored on the partition and exported using loop devices.