I found a very inter­est­ing project, called Picframe. Sprite hacked his dig­i­tal photo key­chain, now it’s pos­si­ble to con­trol this mini photo frame and use it as dis­play. He also cre­ated a new plu­gin for LCD4Linux. I also cre­ated a patch for picframe, now my mini photo frame is also supported.

Some (rather bad) “in action” shots:

Did I men­tion that those lit­tle devices are quite cheap (~20€)?