I cannot get Anki working on Raspberry Pi. (I have a Raspberry Pi connected to a TV in front of my rowing machine so I can study while I'm exercising.) I tried Mnemosyne but I can't get the sync server working, and I'm disappointed in the formatting options provided. I tried org-drill but adding images to cards is quite difficult.
Right now I'm working on writing some Javascript that can be plugged into web pages to provide the spaced repetition functionality. That way I would have the full capability of html5, css3, javascript, etc. Syncing would be handled by whatever file syncing software the user preferred. Creating/editing cards would be by whatever workflow the user wanted.
If anybody has any other solutions to the problems I'm having (running Anki on Raspberry Pi, Mnemosyne syncing/formatting, etc), I'm ready to listen.