For the mention, I want to sync the unit symbol with System, Settings apps. They already use 1024 format to be base of unit. If we change the unit symbol here, they should change the unit by 'KiB', 'MiB' too. I know that using 'KiB', 'MiB' is more precise for base 1024(http://en.wikipedia.org/wiki/Byte). But I also reference different platform for the unit symbol.

For example: (file size: 12,742,624 bytes)
Unbutu: 12.7 MB
Windows: 12.2 MB
Mac: 12.7 MB (But iTunes 12.2 MB)
Android(SS Galaxy Tab 7.7 12.15MB)

The unit 'KB', 'MB', 'GB' is also accepted by user with base 1000/1024.
I think that using the same unit symbol is the top priority in Gaia.

@evelynhung  
Do you agree my suggestion?