The Archos PMA400 is a personal digital assistant (PDA) from Archos, with a hard disk drive and audio and video playback and recording capabilities, so it also functions as a portable media player (PMP). The PMA400 was the most expensive within the line of products that they supplied.
Based on the LinuxQtopia Embedded operating system, the device is more like a personal digital assistant than a normal media player. The PMA400 features the following:
Though it remains Archos's only dedicated PDA, some of its features can be seen on the later 604WiFi including touchscreen and web browsing.
OpenPMA
The original firmware had some major bugs that are now being gradually fixed in an open source firmware by the openPMA project. Added functionality from openPMA are:
Act as a SMB/CIFS server allowing other computers on the network to access the internal hard disk
The MediOS extension originally developed for the AV and Gmini series is available enabling the user to run NES, Sega Mega Drive emulators and Doom interpreter.