FTPD is a MUST if you misplace your SD card reader like I did lol. It makes you install any roms/apps from your pc to your SD card without any cables, as long as your computer and system are connected to the same network. The only downside is if you're installing roms, it won't be instantaneous, you'll have to wait for the games to download for a bit. But other than that, it's super helpful!