BTW, even if the pogoplug had enough juice, it still wouldn't work because Plex Media Server for ARM has no transcoder.
The only real use case for Plex Media Server on the PogoPlug would be if all your media was mp4 (or compatible with your Plex Client to direct stream) OR for playing your music over the internet (via Plex iOS/Android client).
nice write up graymen.
oh apparently the pogoplug doesn't have enough juice to transcode so that's why i was having issues with "video unavailable". it will only play mp4 files directly.