Amazon might not be happy about it, but at least part of the success of their Fire TV Stick was due to the large hacking and modification scene that cropped up around the Android-powered device. A … ...

Arduino is affordable and designed for hackers, Aibo, not so much. @ xander, 3.3/5v is quite easy to provide, I use 4xAA/AAA NiMH cells for 5v (~4.8v) and 2 Lithium AAA for 3.3volts.